AK: Implement String::to_int (#99)

Author: https://github.com/faissaloo 🔰
Commit: 411cdf067b
Pull-request: https://github.com/SerenityOS/serenity/pull/99
Reviewed-by: https://github.com/awesomekling

LibGUI/GVariant.h

@@ -194,7 +194,7 @@ private:
         RawPoint as_point;
         RawSize as_size;
         RawRect as_rect;
-    } m_value; 
+    } m_value;
 
     Type m_type { Type::Invalid };
 };