[fractal] (7 commits) Non-fast-forward update to branch ui-refactor

[Alejandro Domínguez <aledomu src gnome org>]

The branch 'ui-refactor' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  5d872b8... Relocate UI rust code files
  8c01d39... Move connect_gtk to ui module
  27dd74d... Move all fields related to UI from AppOp to UI
  e7c5de7... Remove Rc<RefCell<T>> pattern in ui::UI
  2f30887... Remove Rc<RefCell<T>> pattern in widgets::members_list

Commits added to the branch:

  cf60e0f... Remove GtkBox padding fill and expand child properties (*)
  7977e0b... Remove position and properties with default values (*)
  36cf563... Relocate UI rust code files
  0608b22... Move connect_gtk to ui module
  1832ce5... Move all fields related to UI from AppOp to UI
  7fc06f6... Remove Rc<RefCell<T>> pattern in ui::UI
  d92a3b4... Remove Rc<RefCell<T>> pattern in widgets::members_list

(*) This commit already existed in another branch; no separate mail sent