Fix copying non-message single event text

For events with no body in their source, copy Mirage's generated
content text.

src/gui/Pages/Chat/Timeline/EventContent.qml

@@ -300,8 +300,6 @@ HRowLayout {
             id: linksRepeater
 
             property EventMediaLoader lastHovered: null
-            property var pr: lastHovered
-            onPrChanged: print("pr changed:", pr)
 
             model: {
                 const links = JSON.parse(eventDelegate.currentModel.links)

src/gui/Pages/Chat/Timeline/EventContextMenu.qml

@@ -95,7 +95,10 @@ HMenu {
 
         onTriggered: {
             if (! eventList.selectedCount){
-                Clipboard.text = JSON.parse(event.source).body
+                Clipboard.text =
+                    JSON.parse(event.source).body ||
+                    utils.stripHtmlTags(utils.processedEventText(event))
+
                 return
             }