According to the HIG, we should be using symbolic versions of these
icons at this size. Not that we have symbolic versions for these icons
yet, but it's still safe to do as they'll fall back to the old ones.
This improves the organization of this page, which is starting to become
a bit of a mess. The "Hide images and video events" option is moved
here, and the page is rebranded accordingly for "Security & Safety".
Unnecessary headings are removed, and the ignored users button is moved
to the top of the page.
Explanations for the import/keys buttons are added. The key display
is removed as it's not useful for the user (because they don't know what
to do with it) nor developers (because you can't copy it.) We can add
it back somewhere else.
This has the added benefit of making the whole page fit in the default
settings window size too.
This hides the "Notifications", "Security", "Accounts" and "Devices"
page from the settings if we have no connection. This can now happen
since the user is able to enter the full settings without being logged
in from the welcome page.
Use new KirigamiAddons ConfigurationsView as a replacement for
CategorizedSettings. Fix some issues on desktop when running Qt 6.8
and some less recent issues on mobile.
Visually this looks the same.
