refactor(settings): deprecate settingsKnownSchema and integrate bird and revision settings

- Merged birdSettingsSchema and revisionSettingsSchema into settingsKnownSchema, marking the previous schema as deprecated.
- Updated emptySettingsKnownForm to utilize emptyBirdSettingsForm and emptyRevisionSettingsForm.
- Refactored layout and page components to streamline theme management and improve tab synchronization in network and operations pages.
- Introduced new system settings tab in operations and updated settings page to manage theme preferences.

.releaserc.json

@@ -11,6 +11,7 @@
           { "type": "fix", "release": "patch" },
           { "type": "perf", "release": "patch" },
           { "type": "ci", "release": "patch" },
+          { "type": "refactor", "release": "patch" },
           { "breaking": true, "release": "major" }
         ]
       }