general: compress png images

kernel: Session request cleanup

Controller Applet had instance of Undocked, make Handheld

[audio_core] Update for firmware 15.0.0

Remember that time we renamed the Undocked option to Handheld in the
status bar, and then later remembered the Controller Configuration?

Scrolling through Transifex I noticed that we still have one instance of
"Undocked" in the text.

common/fixed_point: Minor interface improvements

savedata_factory: Detect future save data paths

kernel: fix slab heap ABA

Kernel Multiprocess (Part 1) - Persist memory & core timing

video_core: implement 1D copies based on VMM 'kind'

Ensures that a fixed-point value is always initialized

This likely also fixes several cases of uninitialized values being
operated on, since we have multiple areas in the codebase where the
default constructor is being used like:

Common::FixedPoint<50, 14> current_sample{};

and is then followed up with an arithmetic operation like += or
something else, which operates directly on FixedPoint's internal data
member, which would previously be uninitialized.