Fix small RTL issues

RTL updates

• Mark fractions and dates as LTR when embedded in a RTL string
• @Aza Could you constrain the layout of audio_rewind_10 and audio_forward_10 in audio_player.xml?

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I have read the CONTRIBUTING section of the README document.

Resolves

Fixes: #3102 (closed)