[v9.4.x] [feat] docs; update admonition syntax (#68855)

[feat] docs; update admonition syntax (#68842)

* [feat] docs; update admonition syntax

- Standardizes according to style conventions: https://grafana.com/docs/writers-toolkit/style-guide/style-conventions/#admonitions
- Prepares docs for better, uniform admonition style.

* Remove false positives and irregularities

* false positive removal

* Update docs/sources/datasources/mysql/_index.md

* Update docs/sources/developers/angular_deprecation/angular-plugins.md

* fix link errors

* Prettify some nested blockquotes

* remoe unnecessary admonition

(cherry picked from commit 1c4bb9ca00)

Co-authored-by: Matt Dodson <47385188+MattDodsonEnglish@users.noreply.github.com>

docs/sources/developers/http_api/admin.md

@@ -192,7 +192,9 @@ Content-Type: application/json
 HTTP/1.1 200
 Content-Type: application/json
 
-## Password for User
+```
+
+## Password for User
 
 `PUT /api/admin/users/:id/password`
 
@@ -471,7 +473,9 @@ Content-Type: application/json
 Reloads the LDAP configuration.
 
 Only works with Basic Authentication (username and password). See [introduction](http://docs.grafana.org/http_api/admin/#admin-api) for an explanation.
-
+
+**Example Request**:
+
 ```http
 POST /api/admin/ldap/reload HTTP/1.1
 Accept: application/json