Add license button

main.go

@@ -754,6 +754,10 @@ func main() {
 		dialog.ShowInformation("about pi", fmt.Sprintf("the XMPP client from hell\n\npi is an experimental XMPP client\nwritten by Sunglocto in Go.\n\nVersion %s", version), w)
 	})
 
+	licensesbtn := fyne.NewMenuItem("license", func() {
+		CreditsWindow(fyne.CurrentApp(), fyne.NewSize(800, 400)).Show()
+	})
+
 	reconnect := fyne.NewMenuItem("reconnect", func() {
 		go func() {
 			err := client.Connect()
@@ -1080,7 +1084,7 @@ func main() {
 		}
 	})
 
-	menu_help := fyne.NewMenu("π", mit, reconnect, savedata)
+	menu_help := fyne.NewMenu("π", mit, reconnect, licensesbtn, savedata)
 
 	menu_changeroom := fyne.NewMenu("Α", mic, beginADM, joinARoom, leaveRoom, jbookmarks)
 	menu_configureview := fyne.NewMenu("Β", mia, mis, jtt, jtb)