Refactor pre-commit hooks to use prek (#976)

* ci: change to prek for pre-commit

* refactor: fix shellcheck warnings for the scripts

* chore: unify whitespace formatting

* nix: add prek to dev shell

quickshell/Services/NotepadStorageService.qml

@@ -429,4 +429,4 @@ Singleton {
         id: mkdirProcess
         command: ["mkdir", "-p", root.baseDir, root.filesDir]
     }
-}
+}