Revert attempt to exclude some files from coverage

vitest.config.mts

@@ -69,12 +69,5 @@ export default defineConfig({
         statements: 60,
       },
     },
-    exclude: [
-      "excalidraw-app/components/DebugCanvas.tsx",
-      "packages/utils/src/visualdebug.ts",
-      "node_modules",
-      "examples",
-      "scripts",
-    ],
   },
 });