fix(#434): add IME/pre-edit colors to fix font ghosting

[GowsiSM]

Added missing IME and composition colors to fix font ghosting in pre-edit mode:

• editor.imeBackground
• editor.imeForeground
• editor.imeBorder
• editor.compositionBackground
• editor.compositionForeground
• editor.compositionBorder
• editor.placeholder.foreground

This addresses issue #434.

[backwardspy]

hi, thanks for contributing! i haven't taken an in-depth look at this yet, but i notice the diff has a lot of extra noise unrelated to the IME highlights. i'm happy to keep the root dir change in packages/catppuccin-vscode/tsup.config.js, but otherwise i'd appreciate it if you could revert the unrelated changes like deleting comments and changing the signature of getUiColors.

[GowsiSM]

Hi @backwardspy, thanks for pointing that out!

I’ve updated the existing PR to revert the unrelated changes and kept only the IME and composition color additions. Comments and the getUiColors signature are now unchanged, and the diff should be limited to the intended scope.

Please let me know if anything else needs adjustment, happy to refine it further.