KIM Hyunjae

- `flake.nix` file has been added to the root of the repository. - `README.md` has been updated to include instructions on how to use the project with Nix.

Conversion of Parentheses to Square Brackets When Using a Non-Latin IME

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### Search first - [X] I searched and no similar issues were found ### What Happened? I use the Korean Sebeolsik Final keyboard layout, which assigns the QWERTY `[` key...