chore: add husky pre-commit hook and lint-staged configuration

- Created a pre-commit hook in .husky to run lint-staged.
- Added .lintstagedrc.mjs to format frontend files with Prettier and apply Spotless to backend Java files.
- Introduced .prettierignore to exclude specific directories from formatting.

frontend/tsconfig.e2e.json

@@ -1,9 +1,9 @@
 {
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "noEmit": true,
-    "strict": true,
-    "types": ["node"]
-  },
-  "include": ["playwright.config.ts", "e2e/**/*.ts"]
+	"extends": "./tsconfig.json",
+	"compilerOptions": {
+		"noEmit": true,
+		"strict": true,
+		"types": ["node"]
+	},
+	"include": ["playwright.config.ts", "e2e/**/*.ts"]
 }