Remove deprecated models and mobx usage (react-query refactor) (#1934)

* Update login page to use service query

* Update modal to use session instead of store

* Move image sizes cache off store

* Update settings to no longer use store

* Update link-meta fetch to use agent instead of rootstore

* Remove deprecated resolveName()

* Delete deprecated link-metas cache

* Delete deprecated posts cache

* Delete all remaining mobx models, including the root store

* Strip out unused mobx observer wrappers

src/view/com/profile/ProfileCard.tsx

@@ -1,6 +1,5 @@
 import * as React from 'react'
 import {StyleProp, StyleSheet, View, ViewStyle} from 'react-native'
-import {observer} from 'mobx-react-lite'
 import {
   AppBskyActorDefs,
   moderateProfile,
@@ -152,7 +151,7 @@ function ProfileCardPills({
   )
 }
 
-const FollowersList = observer(function FollowersListImpl({
+function FollowersList({
   followers,
 }: {
   followers?: AppBskyActorDefs.ProfileView[] | undefined
@@ -196,7 +195,7 @@ const FollowersList = observer(function FollowersListImpl({
       ))}
     </View>
   )
-})
+}
 
 export function ProfileCardWithFollowBtn({
   profile,