Require double click to open homepage (#140)

Require double click to open homepage (#140)

* Update TopBar.qml

To raise Mirage's window in a stacking wm, clicking on an area
without text, especially in the topbar, is probably what most users do.
In the case of the 2nd button in the topbar this currently accidentally
opens a browser window and thus becomes a privacy issue.

So for now require a double click to open mirage's homepage.
Alternatively the size of this button should at least be closely
restricted to the text "Mirage ${version number}".

In the long term it might be preferable to put this link into
some kind of "about" section instead of the "title" section.

* Make tooltip indicate that double click is required

Co-authored-by: miruka <miruka@disroot.org>

src/gui/MainPane/TopBar.qml

@@ -60,9 +60,9 @@ Rectangle {
             text: qsTr("%1 %2")
                   .arg(Qt.application.displayName).arg(Qt.application.version)
             label.color: theme.mainPane.topBar.nameVersionLabel
-            toolTip.text: qsTr("Open project repository")
+            toolTip.text: qsTr("Double click to open project repository")
 
-            onClicked:
+            onDoubleClicked:
                 Qt.openUrlExternally("https://github.com/mirukana/mirage")
 
             Layout.fillWidth: true