Tusks for Mastodon 4+

# New

- # detected when you type into composer, presenting your most frequent/recent tags. If you start typing after the hashtag, it will filter suggestions based on the characters you’ve input.
- The best part is the hashtags you’ve set on your current draft post will be carried to your next reply addition. Additionally, if this is a new reply to a previously published post, the hashtags from the thread’s last post will be copied across.
- When starting a new thread, if you type 1/any letter in the first post, then subsequent posts will end in a similar format (showing the post’s position and the length of the entire thread). As you add more replies, all previous posts will update to show the correct thread length. Finally, if you move posts around, or delete any, this information will update to reflect the correct positions for each post and thread length.
- You can now right-click to delete published posts when viewing a thread.

# Improvements

- App should feel more responsive after optimising three areas of code that had the biggest memory footprint.
- More contrast between posts in dark mode.
- Search suggestions for a username mention will consider their display name too (not just handle).
- Made the username handle in composer’s at sign suggestions list condensed to allow for more people to appear at a time. Also slightly reduced vertical spacing between name and handle to make for a more compact presentation.
- Icons in toolbar for threads now look nicer, better grouped and have tooltips.

# Fixes

- Splitting a post into multiple due to a character overflow should work!
- Adding mentions should much, much less likely jump the cursor to the wrong position. Also, it should consistently add a space after the username too so you don’t need to. It’s the little things.
- Your username won’t show up when you @ in the composer.
- Toolbar in composer resets state if you manually type in someone’s username after initially tapping on its @ symbol (previously it would only reset if the username was tapped from the suggested list).
- Username suggestions from the last search shouldn’t appear momentarily when mentioning someone new.
- When discarding a draft reply, composer’s state should be accurate, i.e. we change to the previous post (if any).
- Should never show post 0/n when you discard the first draft in a reply chain.