ui: improved ui of maximized code file window

* Annotations updated when active token Id changes
* FileName in window title
* Maximize button not shown
* Scrolls roughly to the maximized location.
* Maximizing also on double click in code snippet

src/lib/component/view/CodeView.h

@@ -15,6 +15,9 @@ public:
 		CodeSnippetParams();
 
 		int startLineNumber;
+		int endLineNumber;
+		uint lineCount;
+
 		std::string code;
 		TokenLocationFile locationFile;
 		std::vector<Id> activeTokenIds;