[Feature] Delete-all command and Backspace quick-delete for the block list

[Asawars]

changes.patch
src.zip

Hi! First of all, thanks for the mod.

I often end up with a huge auto-populated ore list and there is no quick way to
clean it up: entries can only be removed one by one via Shift+Click -> Delete,
and there is no "clear whole list" action.

I made two small changes and tested them on the v1.20.1-2.18.1 source. I am
attaching the patch (changes.patch) and a short description. Happy to open a
proper PR if that is preferred.

Changes:

1. Backspace quick-delete - while hovering an entry in the XRay block list
   (GuiSelectionScreen), pressing Backspace removes that entry and persists the
   change. The hovered row is highlighted so it is clear what will be removed.
   Backspace is ignored while the search box is focused, so typing still works.
2. /xray clear client command - clears the entire block list and writes an
   empty list to config/xray/block_store.json. The file is intentionally kept
   (not deleted), otherwise the mod's first-run logic re-populates the default
   ores on the next launch.
3. Added two lang keys: xray.tooltips.delete, xray.message.list_cleared.

Files touched: GuiSelectionScreen.java, ClientController.java,
assets/xray/lang/en_us.json.

Tested: open the XRay menu, hover an entry, press Backspace -> entry disappears
and stays gone after reopening the menu / restarting. Run /xray clear -> whole
list emptied and stays empty after restart.

[Asawars]

Sorry for the messy formatting - I'm not very experienced with GitHub and couldn't figure out the pull request flow, so I posted this as an issue instead. The patch is attached (changes.patch / xray-changes.zip). If it would be better as a PR, I can try, or you're welcome to take the patch as-is. Thanks for your patience and for the mod.

[Asawars]

I tested it in my own setup and everything works great. I specifically needed this for the TerraFirmaGreg Modern modpack: it auto-populates a huge number of ores, and their names showed up as raw %s placeholders (e.g. %s (some rock)), because the display name comes from a translation key that resolves to a format string. With such a large, poorly named list, curating it by hand is much more convenient - so being able to clear it and quickly delete single entries is exactly what I needed.