imageio: output formats name cleanup
Enable some log strings for image cache errors
Update French translation.
bring Gentoo live ebuild up to date
imageio: lower default jpeg quality to 95 and minimum to 5

Quality 95 offers a better default quality to size ratio.

Also, defaulting to 97, makes the slider behave slightly oddly
with a step size of 5, since it will "snap" to 92,88,... instead of
95,90,85,...

Alternatively a minimum of 1 causes the slider to snap to 1,6,11,...
instead of 5,10,15...
imageio: lower default j2k/jpeg2000 quality to 95 and minimum to 5

Quality 95 offers a better default quality to size ratio.

Also, defaulting to 97, makes the slider behave slightly oddly
with a step size of 5, since it will "snap" to 92,88,... instead of
95,90,85,...

Alternatively a minimum of 1 causes the slider to snap to 1,6,11,...
instead of 5,10,15...
imageio: lower default WebP quality to 95 and minimum to 5

Also, defaulting to 97, makes the slider behave slightly oddly
with a step size of 5, since it will "snap" to 92,88,... instead of
95,90,85,...

Alternatively a minimum of 1 causes the slider to snap to 1,6,11,...
instead of 5,10,15...
grain: change grain scale factor to allow smaller coarseness

This only changes the displayed grain coarseness, the actual
grain scale in existing history stacks used in the algorithms
will be unaffected by this change.
(cherry picked from commit f15f1320490122d0ac8b911ec568bfeef37ac634)
[l10n] Swedish update