Fixed UITabWidget clipping.

Added pyw extension for python files.
ecode:
Added: Hide tabbar on single tab option.
Added whole word search in global search.
Some minor fixes in global search.

src/tools/codeeditor/codeeditor.hpp

@@ -86,6 +86,7 @@ struct SearchState {
 	String text;
 	TextRange range = TextRange();
 	bool caseSensitive{ false };
+	bool wholeWord{ false };
 	void reset() {
 		editor = nullptr;
 		range = TextRange();