fixes for workspace; some palette tweaking
Restore 1.3 behaviour of Space for harmony

Space/Shift-Space will now stop at the next beat, note, rest or chord.
TAB: stems beside staves were wrong with some combinations of parameters and with multiple voices.
Merge pull request #266 from mgavioli/TAB_fix_stems_beside_staff

TAB: fix stems beside staff
Merge pull request #265 from softins/chord-navigation

Restore 1.3 behaviour of Space for harmony
Fix #20488: time sigs are not created for TAB staves.

If "Show time sigs" is turned on for TAB's, no tiem sig is shown as the time sig element is not there.
Merge pull request #267 from mgavioli/Fix#20488_TAB_time_sigs_not_created

Fix #20488: time sigs are not created for TAB staves.
goto/label is evil
first commit of new instruments.xml
align checkbox with other controls in inspector