i18n/ar.yaml: Put arrow on the right side

This works. The way I understand it is that it needs to be "wrong"
before we run rtlcss so that it gets flipped to be correct when in
right-to-left mode.

i18n/ar.yaml

@@ -8,7 +8,7 @@
   translation: "المَنْشورات الأَخِيرَة"
 
 - id: readMore
-  translation: "← قِرَاءَة المَزِيد"
+  translation: "قِرَاءَة المَزِيد ←"
 
 - id: translations
   translation: "تَرْجَمَة"