Move emojis in issue templates to the titles (#1058)

Followup to #1056

I think it has a much better effect this way!

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,9 +1,9 @@
-name: Bug report
+name: 🐛 Bug report
 
 # See the json schema to help you create / update this form
 # https://json.schemastore.org/github-issue-forms.json
 
-description: 🐛 Create a report to help us improve
+description: Create a report to help us improve
 
 labels: ["bug"]
 

.github/ISSUE_TEMPLATE/config.yml

@@ -1,8 +1,8 @@
 blank_issues_enabled: false
 contact_links:
-  - name: MNE-Python forum
+  - name: 💬 MNE-Python forum
     url: https://mne.discourse.group/
-    about: 💬 Use the [MNE-Python forum](https://mne.discourse.group/) to ask (and answer) concrete technical questions or about usage of MNE-BIDS
-  - name: BIDS specification
+    about: Use the [MNE-Python forum](https://mne.discourse.group/) to ask (and answer) concrete technical questions or about usage of MNE-BIDS
+  - name: 📖 BIDS specification
     url: https://bids-specification.readthedocs.io/en/latest/
-    about: 📖 Read the BIDS specification
+    about: Read the BIDS specification

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,9 +1,9 @@
-name: Feature request
+name: 🛠️ Feature request
 
 # See the json schema to help you create / update this form
 # https://json.schemastore.org/github-issue-forms.json
 
-description: 🛠️ Suggest an idea for this project
+description: Suggest an idea for this project
 
 labels: ["enhancement"]