chore: make formatting run on staged files

Author: mnorlin

.husky/pre-commit

@@ -1,3 +1,11 @@
-#!/usr/bin/env sh
+#!/bin/sh
+FILES=$(git diff --cached --name-only --diff-filter=ACMR | sed 's| |\\ |g')
+[ -z "$FILES" ] && exit 0
 
-npm run format
+# Prettify all selected files
+echo "$FILES" | xargs ./node_modules/.bin/prettier --ignore-unknown --write
+
+# Add back the modified/prettified files to staging
+echo "$FILES" | xargs git add
+
+exit 0