[7.10] [DOCS] Adds redirect to known plugins page (#84001) (#84548)

* [DOCS] Adds redirect to known plugins page (#84001)

* Removes redirects from drilldown commit

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

Author: KOTungseth

docs/redirects.asciidoc

@@ -185,3 +185,8 @@ This content has moved. See <<discover, **Discover**>>.
 == View field data statistics
 
 This content has moved. See <<discover, **Discover**>>.
+
+[role="exclude",id="known-plugins"]
+== Known plugins
+
+This content has moved. See <<known-kibana-plugins>>.

docs/user/plugins.asciidoc

@@ -14,7 +14,7 @@ Plugin developers must release a new version of their plugin for each new {kib}
 ==============================================
 
 [float]
-[[known-plugins]]
+[[known-kibana-plugins]]
 == Known plugins
 
 The known plugins were tested for {kib} *5.x*, so we are unable to guarantee compatibility with your version of {kib}. The {kib} installer rejects any plugins that haven't been published for your specific version of {kib}.