This takes part of the work being done in #96 that was reverted but still useful.
Note Tailwind and Fresh weren't upgraded because there's no security vulnerability in either, and I have found the new versions to be worse in performance. Thos will likely stay at those fixed versions going forward.
I was able to reproduce the problem by setting my system to a timezone, and my `TZ` to a different one. Since it'll default to `UTC`, and to avoid having to pass it around from the system to the client (since we don't really care about the timezone), we simply force the timezone to UTC in the formatting as well, because, again, we don't store timezones or care about them for expenses.
Fixes#88
* Public File Sharing
This implements public file sharing (read-only) with and without passwords (#57).
It also fixes a problem with filenames including special characters like `#` not working properly (#71).
You can share a directory or a single file, by using the new share icon on the right of the directories/files, and click on it to manage an existing file share (setting a new password, or deleting the file share).
There is some other minor cleanup and other copy updates in the README.
Closes#57Fixes#71
* Hide UI elements when sharing isn't allowed
