logic: fixes all over the place

* fixed refreshing to send another ui refresh message after parsing
* keepContent field for MessageBase so that views won't update
* fixed searchmatching to only weigh uppercase letters next to lowercase ones
* fixed file not jumping back to snippets when activating edge
* clicking into empty space deselects active edge
* clear file manager files on every fetch
* added db transaction for file clearing
* use zooming instead of changing font size

src/lib/component/controller/CodeController.cpp

@@ -26,7 +26,7 @@ const uint CodeController::s_lineRadius = 2;
 
 void CodeController::handleMessage(MessageActivateTokens* message)
 {
-	if (message->isEdge && message->isIgnorable())
+	if (message->keepContent() && message->isIgnorable())
 	{
 		return;
 	}
@@ -47,6 +47,10 @@ void CodeController::handleMessage(MessageActivateTokens* message)
 	if (message->isEdge)
 	{
 		view->showFirstActiveSnippet();
+	}
+
+	if (message->keepContent())
+	{
 		return;
 	}