[Pre-release] v0.2.1-alpha.5+12

This is the fifth and final pre-release of Thunder for v0.2.1+12! This nightly fixes some issues introduced in the last pre-releases, and adds a few new features. The main focus for the upcoming nightlies will be fixing any outstanding issues and bugs that were introduced previously. No more new features will be added in the nightlies until the next general release

Be fully prepared to know that these pre-release versions may contain major bugs which could cause Thunder to crash or behave unexpectedly.

The main things to look for are for bugs bugs and more bugs. There were a lot of new features introduced over the past few nightlies and with them come potential bugs. So do your best and look for any bugs that someone may experience!

Changes

• Improvements to image viewer UI, and swipe gestures - contribution from @CTalvio
• Added debug settings page to clear database and user preferences
• Added confirmation when logging out of account - contribution from @ggichure
• Added hour sorting to posts (top hour, six hours, 12 hours) - contribution from @Fmstrat
• Added double tap icon to scroll to top on feed view - contribution from @micahmo
• General optimizations to post loading to improve initial loading performance
• Potentially fixed issue where opening your profile page displayed a different user
• Added image previews to links in compact mode - contribution from @CTalvio
• Added sorting to search page - contribution from @micahmo

For the full list of changes since the last general release, check: https://github.com/thunder-app/thunder/releases/tag/v0.2.1-alpha.5%2B12