latest Welsh translation

[Alan Davies]

Added 2 missing strings

[Anna Tomanek]

Thanks again for that! Could I ask you to provide the only missing string as well, which is:
remove : 'Remove Anchor' // MISSING

Thanks a lot!

[Anna Tomanek]

And two more issues that stem from #7993, where the error messages were corrected ("positive number" instead of just "number"):

invalidCellSpacing : 'Cell spacing must be a positive number.',
invalidCellPadding : 'Cell padding must be a positive number.',

Current form:

invalidCellSpacing : 'Mae\'n rhaid i fylchiad y gell fod yn rhif.',
invalidCellPadding : 'Mae\'n rhaid i badiad y gell fod yn rhif.',

Thanks a lot!

[Alan Davies]

Welsh translation fix

[Alan Davies]

OK changed 'remove' string and 'invalidCell...' strings.

[Anna Tomanek]

Fixed with [7030]. Thanks a lot, duw!