Add dev mode for easy copying of at:// URIs and DIDs (#7723)

* Add dev mode for easy copying at:// URIs and DIDs

* Use storage API

* Share text instead of URL

* Cleanup persisted schema

* Change translation msg

src/storage/schema.ts

@@ -9,6 +9,7 @@ export type Device = {
     countryCode: string | undefined
   }
   trendingBetaEnabled: boolean
+  devMode: boolean
 }
 
 export type Account = {