chore: Add Husky pre-commit Git hook for formatting / linting

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+yarn pre-commit

package.json

@@ -22,7 +22,9 @@
         "lint:desktop": "eslint packages/desktop",
         "lint:mobile": "eslint packages/mobile",
         "lint:shared": "eslint packages/shared",
-        "postinstall": "patch-package"
+        "postinstall": "patch-package",
+        "pre-commit": "yarn format-check && yarn lint",
+        "prepare": "husky install"
     },
     "resolutions": {
         "lodash": ">=4.17.21"