fix typo in dialog box (#618)

Author: natewu

auto_cpufreq/gui/objects.py

@@ -194,7 +194,7 @@ def _remove_daemon(self, MenuItem, parent):
                     transient_for=parent,
                     message_type=Gtk.MessageType.INFO,
                     buttons=Gtk.ButtonsType.OK,
-                    text="Daemon succesfully removed"
+                    text="Daemon successfully removed"
                 )
                 dialog.format_secondary_text("The app will now close. Please reopen to apply changes")
                 dialog.run()
@@ -299,7 +299,7 @@ def install_daemon(self, button, parent):
                 transient_for=parent,
                 message_type=Gtk.MessageType.INFO,
                 buttons=Gtk.ButtonsType.OK,
-                text="Daemon succesfully installed"
+                text="Daemon successfully installed"
             )
             dialog.format_secondary_text("The app will now close. Please reopen to apply changes")
             dialog.run()
@@ -314,4 +314,4 @@ def install_daemon(self, button, parent):
             )
             dialog.format_secondary_text(f"The following error occured:\n{e}")
             dialog.run()
-            dialog.destroy()
+            dialog.destroy()