Silence webpack performance warnings/hints (#17490)

Turns off webpack warnings like:
```
WARNING in entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (244 KiB). This can impact web performance.
```

Author: docEdub

packages/dev/buildTools/src/webpackTools.ts

@@ -240,6 +240,9 @@ export const commonDevWebpackConfiguration = (
               }
             : undefined,
         plugins,
+        performance: {
+            hints: false,
+        },
     };
 };
 
@@ -368,6 +371,9 @@ export const commonUMDWebpackConfiguration = (options: {
                 mode: options.mode || "development",
             }),
         },
+        performance: {
+            hints: false,
+        },
         ...options.extendedWebpackConfig,
     } as Configuration;
 };