Add TikTok to Blocked services

[lifansama]

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Here are some rules may help you

||snssdk.com^
||amemv.com^
||toutiao.com^
||ixigua.com^
||pstatp.com^
||ixiguavideo.com^
||toutiaocloud.com^
||toutiaocloud.net^
||bdurl.com^
||bytecdn.cn^
||byteimg.com^
||ixigua.com^

[bzy39]

While on this, why not create a form to add custom blocked services? like DNS rewrite.
and the configuration like

services:
  - id: tiktok
    name: TikTok
	rules:
	- '||snssdk.com^'
	- '||amemv.com^'
	- '||toutiao.com^'
	- '||ixigua.com^'
	- '||pstatp.com^'
	- '||ixiguavideo.com^'
	- '||toutiaocloud.com^'
	- '||toutiaocloud.net^'
	- '||bdurl.com^'
	- '||bytecdn.cn^'
	- '||byteimg.com^'
	- '||ixigua.com^'
  - id: twitter
	name: Twitter 
	rules:
	- '||twitter.com^'
	- '||t.co^'
	- '||twimg.com^'