Summary:
Cuttlefish's UI got an overhaul.
- Won't break if window width is different than expected.
- Plasma components have been replaced with Kirigami and QQC2 components
- Preview moved to bottom of screen
- Copy icon name button is now part of icon name instead of being an independent button
- Copy code is removed
- Change preview on hover is removed
- Open icon file added
- Other UI tweaks (spacing, colors)
- Adaptive UI
- Appmenu, icon right click menu
- Perfectly cooked screenshots, every time guaranteed, or your money back

BUG: 406067
FIXED-IN: 5.17.0

Test Plan:
{F7358373}
{F7358378}

Reviewers: #vdg, ngraham, ndavis, ognarb

Reviewed By: #vdg, ngraham, ndavis, ognarb

Subscribers: ognarb, GB_2, trickyricky26, davidre, ndavis, filipf, davidedmundson, ngraham, plasma-devel, #vdg

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D23712