fix: update kleros-app tsconfig.check.json to include root ts/tsx files in type checking

Author: kyrers

kleros-app/tsconfig.check.json

@@ -1,11 +1,13 @@
 /*
-* This file simple extends the default config, but adds the src directory to the include list.
+* This file simple extends the default config, but adds the src directory and any ts/tsx files in root to the include list.
 * This way check-types can look at both the src and lib folders, but vite can still use the original config
 * and only look at the lib directory when building the package.
 */
 {
   "extends": "./tsconfig.json",
   "include": [
-    "src/**/*"
+    "src/**/*",
+    "**/*.ts",
+    "**/*.tsx",
   ]
 }