Fix config override of other settings levels (#12593)

* Make config override other settings levels and add tests

* fix documentation

* lint

* Use a const for finalLevel.

* respect the explicit parameter

* Use supportedLevelsAreOrdered for config overrides rather than a separate setting.

* Fix typos

* Fix mock in UserSetttingsDialog-test

* Special case disabling of setting tos use config overrides.

* remove logs

src/components/views/elements/SettingsFlag.tsx

@@ -62,6 +62,13 @@ export default class SettingsFlag extends React.Component<IProps, IState> {
     }
 
     private getSettingValue(): boolean {
+        // If a level defined in props is overridden by a level at a high presedence, it gets disabled
+        // and we should show the overridding value.
+        if (
+            SettingsStore.settingIsOveriddenAtConfigLevel(this.props.name, this.props.roomId ?? null, this.props.level)
+        ) {
+            return !!SettingsStore.getValue(this.props.name);
+        }
         return !!SettingsStore.getValueAt(
             this.props.level,
             this.props.name,