🔧 chore(Makefile): make pre-commit hook executable

The pre-commit hook in the .githooks directory was not executable, causing it to not be triggered. This commit makes the pre-commit hook executable by adding the `chmod +x` command to set the executable permission on the pre-commit hook file.

Makefile

@@ -5,6 +5,8 @@ all: help
 init:
 	@echo 'Installing pre-commit hooks'
 	git config core.hooksPath .githooks
+	@echo 'Making pre-commit hook executable'
+	chmod +x .githooks/pre-commit
 	@echo 'Installing backend dependencies'
 	make install_backend
 	@echo 'Installing frontend dependencies'