Automatically outdent end keyword in languages that use it

[rnwst]

Neovim automatically outdents lines that contain the end keyword in languages that use it (such as Lua, Julia, FORTRAN, MATLAB, etc.) as can be seen in the Lua snippet below:

Screencast.From.2025-04-01.21-57-18.mp4

Helix, on the other hand, does not do this, thereby requiring the user to remember to press the backspace key (an additional keystroke) before typing end:

Screencast.From.2025-04-01.21-56-28.mp4

It would be great if Helix was able to automatically outdent a line as soon as the user completes typing the end keyword, just like Neovim does.

[nik-rev]

it would be nice to know how exactly Neovim does this, e.g. I assume they use some kind of tree-sitter query to accomplish this (it needs to be general as Helix can't hard-code anything for specific languages)