Allow opening links in the MessageDelegateContextMenu

Fixes #167


(cherry picked from commit 449adf993c)

imports/NeoChat/Menu/Timeline/MessageDelegateContextMenu.qml

@@ -55,6 +55,18 @@ Kirigami.OverlaySheet {
                     text: message
                     Layout.fillWidth: true
                     wrapMode: Text.WordWrap
+
+                    onLinkActivated: {
+                        if (link.startsWith("https://matrix.to/")) {
+                            var result = link.replace(/\?.*/, "").match("https://matrix.to/#/(!.*:.*)/(\\$.*:.*)")
+                            if (!result || result.length < 3) return
+                            if (result[1] != currentRoom.id) return
+                            if (!result[2]) return
+                            goToEvent(result[2])
+                        } else {
+                            Qt.openUrlExternally(link)
+                        }
+                    }
                 }
             }
         }