Implemented new dark theme

src/utils/migrations/contexts/migration.ts

@@ -1,21 +1,20 @@
 import { ContextsV0 } from './v0'
 import { ContextsV1 } from './v1'
+import { ContextsV2 } from './v2'
 
 const contextsMigration = {
-  1: (state: ContextsV0) => {
-    return (state = {
+  1: (state: ContextsV0): ContextsV1 => {
+    return {
       ...state,
-      // @ts-ignore
       mePage: {
         lists: { shown: false },
         announcements: { shown: false, unread: 0 }
       }
-    })
+    }
   },
-  2: (state: ContextsV1) => {
-    // @ts-ignore
-    delete state.mePage
-    return state
+  2: (state: ContextsV1): ContextsV2 => {
+    const { mePage, ...rest } = state
+    return rest
   }
 }