chore(lint-staged): use staged files in pre-commit instead of full test pipeline

Author: Larry Botha

.husky/pre-commit

@@ -1,4 +1,4 @@
 #!/bin/sh
 . "$(dirname "$0")/_/husky.sh"
 
-npm test
+npx lint-staged

.lintstagedrc.js

@@ -0,0 +1,3 @@
+module.exports = {
+  '*.{svelte,js,ts}': ['eslint', 'prettier --write'],
+};