Give explicit names to MobX observer components (#1413)

* Consider observer(...) as components

* Add display names to MobX observers

* Temporarily suppress nested components

* Suppress new false positives for react/prop-types

src/view/com/modals/lang-settings/PostLanguagesSettings.tsx

@@ -13,7 +13,7 @@ import {ToggleButton} from 'view/com/util/forms/ToggleButton'
 
 export const snapPoints = ['100%']
 
-export const Component = observer(() => {
+export const Component = observer(function PostLanguagesSettingsImpl() {
   const store = useStores()
   const pal = usePalette('default')
   const {isMobile} = useWebMediaQueries()