eepp: Improved default click step for scrollable widgets.

ecode: Never block main thread when sending messages to an LSP.
Ctrl/Cmd + Alt + Click -> now executes "Go to definition".
Improved modifier keys when used in combination with mouse clicks.

src/tools/ecode/ecode.cpp

@@ -2414,6 +2414,7 @@ void App::initProjectTreeView( std::string path ) {
 					 } } );
 
 				mProjectTreeView->setModel( mFileSystemModel );
+				mProjectViewEmptyCont->setVisible( false );
 
 				if ( mFileSystemListener )
 					mFileSystemListener->setFileSystemModel( mFileSystemModel );