Fixed phone numbers in RTL mode by adding an LTR mark.
GNOME Contacts had a bug where phone numbers would be unreadable in RTL languages.
PS: Numbers are always LTR in RTL languages, like Arabic.
Since phone number strings sometimes have non-number characters (like +,(,),space), text would be interpreted as RTL sometimes.
This commit fixes this by adding a Unicode LTR mark.
Edited by Hadi Charara