2.18.1

• Arabic language support
• Display archived card count in group overview
• Fix balance parsing bugs (made cards not savable in Arabic and other language with non-Western numbers)
• Fix custom theme not applying to main screen correctly
• Improve display of selected cards
• Fix crash when leaving cardview in RTL layouts for cards with expiry or balance
• Fix back arrow in card view pointing the wrong way in RTL layouts

Note: I accidentally built the .apk and uploaded it to Google Play before doing a "git pull" or my main branch. So the 2.18.0 I uploaded to Google Play was wrong. Because Google doesn't allow me to undo a release that not a single person has installed yet, I'm retagging 2.18.0 as 2.18.1 to keep it consistent on all platforms.