Reload settings when verification dialog is closed

When a user wants to add a phone number or email addess, a verifikation token is sent to them and a dialog is opened to enter it.
Before the commit, after closing the verification dialog, the settings dialog was not refreshed.
Therefore the added <phone number / email adress> would stay in the input
with a spinner spinning next to it until another action was taken.

With this commit, closing the verification dialog refreshes the settings window.

fractal-gtk/src/appop/account.rs

@@ -103,6 +103,7 @@ impl AppOp {
             }
             w.destroy();
         });
+        self.get_three_pid();
         dialog.show_all();
     }
 
@@ -139,6 +140,7 @@ impl AppOp {
             }
             w.destroy();
         });
+        self.get_three_pid();
         dialog.show_all();
     }