Use Arabic numerals consistently

Expected behavior

Arabic numerals (1 2 3 4 5 6 7 8 9 0) should be used everywhere all the time.

Actual behavior

When Arabic is the selected app language, in a number of places, but not consistently, we use Indo-Arabic numerals instead of normal Arabic numerals. We would do better to consistently use Arabic numerals (the regular ones we’re used to) rather than Eastern Arabic (Indo-Arabic) numerals – (٠ ١ ٢ ٣ ٤ ٥ ٦ ٧ ٨ ٩) – because everyone who reads Arabic knows the Arabic numerals, but not all know the Indo-Arabic numerals.

This looks especially strange on screens where we use both types of numerals:

Steps to reproduce the behavior

1. Head to Me > App Settings > Interface Language and select Arabic.
2. Explore the app and find the Eastern Arabic numerals displayed in various places.
   I've seen them in the Stats Card and Screens, Blogging Prompts Card, while selecting Media, and in Reader (dates)

Tested on Samsung Galaxy S21, Android 12, WPAndroid 20.4-rc-2

Internal reference: p5T066-3jv-p2#comment-12698

Select Arabic under Me > App Settings > Interface Language and reproduce the inconsistent numerals in the Stats Card, Screens, Blogging Prompts Card, Media selection, and Reader dates. Trace each affected screen or entry point, then verify that displayed numbers consistently use Arabic numerals rather than Eastern Arabic numerals.