fix(Global): 'Open in Browser' doesn't work in chat

strip the URL from any HTML tags before trying to open it; Qt sometimes
likes to leave some HTML tags there and that breaks the URL validity
checks further on

Fixes: #7170

ui/imports/utils/Global.qml

@@ -85,6 +85,8 @@ QtObject {
     }
 
     function openLink(link) {
+        // Qt sometimes inserts random HTML tags; and this will break on invalid URL inside QDesktopServices::openUrl(link)
+        link = globalUtils.plainText(link);
         if (localAccountSensitiveSettings.showBrowserSelector) {
             openChooseBrowserPopup(link);
         } else {