[Applets/Folder] Re-arrange positioning of "Arrange in" and "Align" submenus

Summary:
Move the "Arrange in" and "Align" submenus below "Sort by" and "Icon size", which are
more useful and commonly-used.

BUG: 360353
FIXED-IN: 5.18.0

Test Plan: {F7924242}

Reviewers: hein, #vdg, mart

Reviewed By: #vdg, mart

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D26882