ui: fix codeview scrollbar and search crash

* fixed size policies of codeview elements to prevent the codeview from having a global scrollbar
* fixed crash in sorting of search results
* removed debug log when panning a codesnippet

src/lib_gui/qt/element/QtCodeFileList.h

@@ -30,8 +30,6 @@ public:
 	QtCodeFileList(QWidget* parent = 0);
 	virtual ~QtCodeFileList();
 
-	virtual QSize sizeHint() const;
-
 	void addCodeSnippet(const CodeSnippetParams& params, bool insert = false);
 	void addFile(std::shared_ptr<TokenLocationFile> locationFile, int refCount, TimePoint modificationTime);