[Azoth Murm] Don't request empty geo codes.
[Azoth] Update status button only after theme is loaded.
[Azoth Murm] Updated translations.
[TSM] Added "Add session" button for #1784 and for #1785.
[TSM] Added separate addCustomSession() for #1784.
[TSM] Don't open duplicate tabs from a session, closes #1785.
[TSM] Connect Add signals.