On shared entries, there is no speed configured as this
is bound to the user. Shared entries are displayed without user config.
I've changed the default view to reflect the
actual default playback speed in this case. 1x.
When listening to podcast, it is usual to want to speed up the playback.
https://github.com/miniflux/v2/pull/2521 was addressing the need globally, this PR
allow to address it for just the current open enclosure media. (no save) Some Browser
already include this control directly, but firefox does not (directly anyway).
Also, it is often useful to be able to skip chunk of a podcast, to skip commercials
for example, or get back a bit because we couldn't hear the last part. I added rudimentary
seek controls with the usual +/-10 and 30 seconds chuck size. This is pretty handy when podcast
are very long and using the seek bar is way too tricky to just skip 30s.
As always, I'm French and could only provide English and French translation for the few
text I added in the locale/translations files. Any help is welcome.
Tested mostly on Firefox (121.0) and quickly on Vivaldi(6.5.3206.53), chrome based.
Fixes: #1845#1846
