Florisboard already overrides LatinIME at the package level
(overrides: ["LatinIME"]), but IME selection -- unlike default
launcher/browser -- requires an explicit enabled-list; being the sole
installed keyboard doesn't auto-enable it on its own.
The commented-out example for this already existed here but had the
wrong component (dev.patrickgold.florisboard/.ime.FlorisImeService --
that class doesn't exist). Confirmed the real component live on
pawlet_rpi4 via `ime list -a`: .FlorisImeService, no .ime. package
segment.