Fixes #731 - Persian currency symbol displayed doubled

This fixes the issue for new installs, but unfortunately not for existing users.

Author: codinguser

app/src/main/res/raw/iso_4217_currencies.xml

@@ -1313,7 +1313,7 @@
         exchange-code="364"
         parts-per-unit="1"
         smallest-fraction="1"
-        local-symbol="﷼﷼"
+        local-symbol="﷼"
     />
     <!-- "ISK" - "Iceland Krona"
     -->