chore: change the templates of bug/suggestion report (#5019)

Since there're too many issues' reports unsuitable and without detail
information, this has puzzled us too much. Here's a list of templates
for us to force the users to input what you want step by step

.github/ISSUE_TEMPLATE/bug-report-cn.yml

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+name: 🐛 Egg Bug 反馈
+description: 如发现 Egg 框架中的 Bug，请及时在此汇报。
+labels: [bug]
+body:
+  - type: textarea
+    attributes:
+      label: |
+        在此输入你需要反馈的 Bug 具体信息（Bug in Detail）：
+      placeholder: |
+        1. 我做了什么。
+
+        2. 我的预期值。
+
+        3. 我实际得到的结果。
+
+        4. 可以的话，请提供一些截图、视频作为附件以复现症状。
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: 可复现问题的仓库地址（Reproduction Repo）
+      description: |
+        1. 请使用 `npm init egg --type=simple bug` 创建最小可复现问题的代码。
+        
+        2. 在 GitHub 中上传该代码项目，并在此处粘贴地址。你也可以直接将你的仓库压缩为 zip 文件直接以附件形式提交。
+      placeholder: |
+        https://github.com/YOUR_REPOSITORY_URL
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Node 版本号：
+      description: |
+        你的当前复现问题的 Node 版本号：
+      placeholder: |
+        使用 “node -v” 命令，在控制台得到版本号（例如：v8.5.0）。
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Eggjs 版本号：
+      description: |
+        你的当前复现问题 Eggjs 版本号：
+      placeholder: |
+        请直接在“package.json”中查阅（例如：3.1.0）。
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: "相关插件名称与版本号（PlugIn and Name）："
+      description: |
+        插件名称以及版本号：
+      placeholder: |
+        请直接在“package.json”中查阅（例如：egg-mysql，3.1.1）。
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: "操作平台与版本号（Platform and Version）："
+      description: |
+        你的操作平台与版本号：
+      placeholder: |
+        Windows 10 专业版（21H2）
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -0,0 +1,65 @@
+name: 🐛 Bug Report For Eggjs
+description: Report an issue if something isn't working as expected 🤔.
+labels: [bug]
+body:
+  - type: textarea
+    attributes:
+      label: |
+        Your detail info about the Bug:
+      placeholder: |
+        1. What I did. 
+
+        2. What I expected to happen. 
+
+        3. What I actually got.
+
+        4. If possible, images/videos as attachments are welcomed to show the bug.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Reproduction Repo
+      description: |
+        1. Please use `npm init egg --type=simple bug` to create your smallest repo.
+        
+        2. Submit it in the GitHub and paste your URL here. You can also attach your zip file directly.
+      placeholder: |
+        https://github.com/YOUR_REPOSITORY_URL or your zip file
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Node Version
+      description: |
+        What's your Node's version?
+      placeholder: |
+        Use "node -v" in your console to get it (e.g: v8.5.0).
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Eggjs Version
+      description: |
+        What's your Eggjs version?
+      placeholder: |
+       See it directly in your "package.json" file (e.g: 3.1.0)
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Plugin Name and its version
+      description: |
+        What's your plugin's name and version?
+      placeholder: |
+        See them directly in your "package.json" file (e.g: egg-mysql, 3.1.1)
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Platform and its version
+      description: |
+        What's your platform and its version?
+      placeholder: |
+        Windows 10 Professional(21H2)
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/feature-request-cn.yml

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+name: 💡 我有一个新点子
+description: 我对 Eggjs 框架有一个新的想法（或许我想来实现他）……
+labels: [feature request]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        对于 Egg.js 框架，你有一个新的想法？
+        不过在提交你的新点子之前，麻烦请检阅一下是否之前的帖子中有类似重复的内容。
+  - type: textarea
+    attributes:
+      label: 请详细告知你的新点子（Nice Ideas）：
+      placeholder: |
+        1. 您期望能够实现什么功能。
+
+        2. 您的理由（如：我一直被什么问题困扰……）。
+        如果方便的话，请提供截屏或者视频等详细信息。
+        
+        3. 我能够做一些什么（最好是能提供一些伪代码帮助实现）。
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,23 @@
+name: 💡 Feature Request For Eggjs
+description: I have a suggestion (and may want to implement it)!
+labels: [feature request]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        You have an idea how to improve the Eggjs?
+        
+        Before submitting, please have a look at the existing issues if there's already
+        something related to your suggestion.
+  - type: textarea
+    attributes:
+      label: "Enter your suggestions in details:"
+      placeholder: |
+        1. What I expected to happen?
+
+        2. Your reason (e.g: I'm always frustrated with...). 
+        If possible, images or videos are welcome.
+        
+        3. What I plan to do (Optional but better in pseudo codes).
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/rfc-cn.yml

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+name: 🚀 RFC 提案
+description: 我对 Eggjs 框架技术架构功能层面上有重大新增、改进等。
+labels: [RFC proposal]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        对于 Eggjs 框架功能你是否有重大的新增或改进之类的想法？
+        
+        不过在提交你的新想法或方案之前，麻烦请检阅一下是否之前的帖子中有类似重复的内容。
+  - type: textarea
+    attributes:
+      label: 请详细告知你的新解决思路（Your new RFCs）：
+      placeholder: |
+        1. 描述你希望解决的问题的现状，附上相关的 issue 地址。
+        如果方便的话，请提供截屏或者视频等详细信息。
+        
+        2. 我能够做一些什么（譬如具体相关的的 API，描述思路，最好是能提供一些伪代码帮助实现）。
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: "跟进类型（Follow-up Types）："
+      description: 此议案跟进类型情况：
+      options:
+        - label: 这是某个任务
+        - label: 这是一个具体的 PR 的地址（URL）

.github/ISSUE_TEMPLATE/rfc.yml

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+name: 🚀 RFC Proposals
+description: I've got a major improvement (or idea) on the technical architecture of the Eggjs framework.
+labels: [RFC proposal]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Any better new/changable functions for the core technical architecture of the Egg.js framework?
+        
+        But please make sure there's no duplicated issues related to your idea before submitting.
+  - type: textarea
+    attributes:
+      label: "Please describe your idea in detail:"
+      placeholder: |
+        1. Describe the current situation of the problem you want to solve, 
+        and attach the related issue address.
+
+        If it is possible, please provide screenshots or videos in detail.
+
+        2. What can I do (related APIs, Your ideas, better to provide some pseudo code to help implementations).
+    validations:
+      required: true
+  - type: checkboxes
+    attributes:
+      label: Follow-up type
+      description: The type of the RFC proposals.
+      options:
+        - label: Some Task
+        - label: PR URL(s)
+    validations:
+      required: true