Fix gap between Write Your Reply and bottom bar on web (#6783)

* Fix gap between Write Your Reply and bottom bar on web

* rm log

src/view/com/post-thread/PostThread.tsx

···
         styles.prompt,
         fabMinimalShellTransform,
         {
-          bottom: clamp(safeAreaInsets.bottom, 15, 30),
+          bottom: clamp(safeAreaInsets.bottom, 13, 30),
         },
       ]}>
       <PostThreadComposePrompt onPressCompose={onPressReply} />