Add import aliases for src/ and assets/

tsconfig.json

@@ -2,6 +2,10 @@
   "compilerOptions": {
     "jsx": "react",
     "baseUrl": "./",
+    "paths": {
+      "@/*": ["src/*"],
+      "@assets/*": ["assets/*"]
+    },
     "strict": true
   },
   "extends": "expo/tsconfig.base",