LegendKeeper 0.15.3.0

Added Aliasing feature
- Add an "Alias" block to sidebar to give alternate names for an element
- These names will be usable in @-mentions, autolinks, and search.
Definite article coercion
- When you have an element that starts with "The", like "The Castle", @-mentioning that element after a plaintext "the" or "The" will shorten the mention. For example, "Let's go to the @The Castle" becomes "Let's go to the Castle."
- This might be a bit finicky; please provide feedback on it in Discord.
Filter trash
- You can now filter the contents of the trash by name, making it easier to find and restore elements.
Empty trash
- Project admins can permanently empty a project's trash.
  - This will IRREVERSIBLY DESTROY elements in the trash upon confirmation.
  - Do not submit a support ticket asking to recover an emptied trash bin, as it is not possible.

This may increase performance on particularly large projects with many elements in the trash, especially after emptying trash and then performing a Reset Local Data to clear deletion metadata.

This is a very complex feature due to the way LegendKeeper works; let me know if you see anything weird.