[BUG] [Pre-Release] [v0.18.0-Beta] [Mastodon] Quality Control

### Description ### A) Hub - [ ] [Mastodon] Global timelines are not loading - [ ] [Mastodon] Trying to browse tag timeline crashes - [ ] [Mastodon] Timeline filters do not work for user timeline - [ ] [Mastodon] Pinning options are limited (only shows status against current profile) ### B) Feeds - [ ] [Mastodon] Mentions do not resolve to a valid user in bottom sheet (user badges do) - [ ] User peek sheet does not have error screens - [ ] There should be no dropdown hint beside the feed label (since it is not supported) - [ ] Use of flash list causing flickers ### C) Explore - [ ] The message shown during daytime is wrong - [ ] Excessive timeline padding - [ ] "More stuff coming soon" should be replaced with "how to use", for the non-explore tabs - [ ] Let's rename the "Explore" tab to "Discover" - [ ] User search not paginating (intended?) - [ ] [Mastodon] cannot search for posts - [ ] [Mastodon] searching for tags is not implemented - [ ] The skeleton used for users/tag search needs to be updated - [ ] The navbar does not partially auto-hide (okay for now) ### D) Inbox - [ ] Quick actions do not work for metnion tab - [ ] Some mentions are parsed as links (one of my main account inbox items) - [ ] Some links getting parsed as mentions (see @theoteno's reply on Mention box) - [ ] Insufficient amount of bottom padding for the inbox timelines - [ ] The social feed does not update maxId - [ ] The mention feed does not updagte maxId ### E.1) Home - [ ] Some timelines have lost their navbars (like) - [ ] [Mastodon] Lists page not implemented - [ ] Drafts page is not implemented - [ ] Skins page is not implemented - [ ] Timeline loading indicator is stuck always on (keeps loading more) ### E.2) Onboarding - [ ] [All] We need to dissable auto-completion and spell checks in the server field - [ ] [Mastodon] the mastodon sign in page has white backgrounds (should be black) - [ ] [Mastodon] the redirection does not trigger after successful sign in (this prevented further testing) ### E.3) Settings - [ ] There is a missing space between coming and soon ### User Profiles - [ ] For "Mutuals" status, the background of the relation manager button is same as the background of the component behind it - [ ] [All] The 4th tab should have some placeholder of being constructed ## Feature Request - [ ] Double tap to go to the root view for a page ### App Version v0.18.0-beta ### Install Source Self-Compiled ### Reproduction Steps Installed the lite edition from build artifacts ### Screenshots and Videos _No response_