"THESE GODDAMN TOASTS ON THIS GODDAMN DESKTOP!!1"

- Complete rewrite of the toast system for both better aesthetics as well as smoother functionality along with a new set of options to configure, namely as follows.
- Many potential crashes fixed, a redesign of the form itself making it more compatible, better handling of object disposals, the implementation of LRU memory caching, early caching of HTML/Markdown images, fixing the height of the toast that did not work perfectly before and ended cutting up images in half, more pipelining of toasts before they are displayed using TPL, cleaned up toast pinning, better disposal and cloning of images to work around win32 glitches and long-standing non-addressed memory management issues ... and a partridge in a pear tree!
- Ensure proper disposition of objects in the Gotify connection maintainer itself.