Improve the "bug report" template and "support options" document (#26753)

* `/help/support` is a better document than
`/administration/logging-config` for bug reporting
* Improve `support.en-us.md`
    * Move/add detailed contents into `Advanced Bug Report Tips` section
    * Merge `Chinese Support` section into `Support Options`

.github/ISSUE_TEMPLATE/bug-report.yaml

@@ -1,6 +1,6 @@
 name: Bug Report
 description: Found something you weren't expecting? Report it here!
-labels: kind/bug
+labels: ["kind/bug"]
 body:
 - type: markdown
   attributes:
@@ -15,11 +15,8 @@ body:
       3. Make sure you are using the latest release and
          take a moment to check that your issue hasn't been reported before.
       4. Make sure it's not mentioned in the FAQ (https://docs.gitea.com/help/faq)
-      5. Please give all relevant information below for bug reports, because
+      5. It's really important to provide pertinent details and logs (https://docs.gitea.com/help/support),
          incomplete details will be handled as an invalid report.
-      6. In particular it's really important to provide pertinent logs. You must give us DEBUG level logs.
-         Please read https://docs.gitea.com/administration/logging-config#collecting-logs-for-help
-         In addition, if your problem relates to git commands set `RUN_MODE=dev` at the top of app.ini
 - type: textarea
   id: description
   attributes:
@@ -89,6 +86,6 @@ body:
     description: What database system are you running?
     options:
     - PostgreSQL
-    - MySQL
+    - MySQL/MariaDB
     - MSSQL
     - SQLite