Post layout tweaks (#53)

* Increase left margin on feed and embiggen avis

* Decrease feed margins a bit

* Tweak post bottom margin

* Update loading placeholder to match feed

* Update 'view full thread' positioning

* Update postthread to match feed layout

* Update notifications and individual post to match new layout

* Add missing aborted check

src/view/com/post/Post.tsx

@@ -215,13 +215,15 @@ export const Post = observer(function Post({
 const styles = StyleSheet.create({
   outer: {
     padding: 10,
+    paddingRight: 15,
     borderTopWidth: 1,
   },
   layout: {
     flexDirection: 'row',
   },
   layoutAvi: {
-    width: 60,
+    width: 70,
+    paddingLeft: 8,
   },
   layoutContent: {
     flex: 1,