Adjusted the colors of the notifications and media controls to help them fit in better together.


Clock position changed so that it will always be at the top.
The login keypad will now hide when the keyboard is opened.

This fixes some of the oddities with applets that we experience that are designed for Desktop. We don't really have a need for different behaviour from Desktop, so it's probably best to follow it for the least amount of bugs.
Eventually we perhaps should derive our shell package from desktop?
Sometimes from suspend, the screen locker only tells us it can be unlocked (and not direct pin entry success), which requires the user to reopen the keypad if it's already open to unlock.
Currently the lockscreen takes 5 seconds to load for me on the OnePlus 6. This MR moves the quicksettings and status bar to only load once the initial lockscreen has loaded (to avoid blocking it). This brings it down the initial load to 1 second for me.
The current lockscreen mockups were originally from this mockup: https://phabricator.kde.org/T12717
There are some issues with it however:
- The 0 key is on the right, which is a bit strange and differs from the layouts of all other platforms
- One-handed usability is worse due to 4 columns instead of 3
- Most mobile lockscreen have the keypad toward the center for one-handed usability, our keypad is stuck to the bottom
- It makes use of a lot of shadows which makes it slower to load
- It's supposed to emulate the design of the keyboard, but it doesn't look like it so it's out of place
The new design is much simpler, with a centered 3 column approach making keys much easier to reach with one hand. It also avoids the use of shadows and layers.



TODO:
- Investigate some improvements for keyboard input
BUG: 484054
This is a potential fix for the input to stop working. There was unused code for passwordless login that could cause the "waitingForAuth" variable to never be set to false after user input.
This (partially) reverts commit 127bbdf653.
Only incorrect changes from Kirigami.Units.largeSpacing to
Kirigami.Units.gridUnit are reverted. Only Plasma.Units were buggy.
Search and replace all the occurrences of Svg/FrameSvgItem/SvgItem
to their new implementation from KSvg.
Changes only namespace, API is the same
See also:
https://invent.kde.org/frameworks/ksvg/-/issues/1