Incomplete support for Urdu language text

**Bug**
The default font configuration of elementary OS (eOS) does not support [Urdu language](https://en.wikipedia.org/wiki/Urdu) text. So it is requested that future releases of eOS may please incorporate Urdu support. Two examples of improper (default eOS font) and proper (with [Noto Naskh Arabic](https://www.google.com/get/noto/#naskh-arab) font) Urdu text rendering can be viewed [here](https://mega.nz/#F!Nd0T0bJD!4wH35bAqYQE5Szfef9zeVQ).

**Inadequate solution**
As a way-out, I install supporting fonts (e.g, [Noto Nastaliq Urdu](https://www.google.com/get/noto/#nastaliq-aran) or [Noto Naskh Arabic](https://www.google.com/get/noto/#naskh-arab)) and specify them as system fonts (Window Title, Interface, Document, and Monospace) with Gnome Tweaks. This makes, e.g., Urdu text in notifications appear properly. But the apps like Ephiphany, [Station](https://getstation.com/) and [Rambox](https://rambox.pro/) still do not render the language's text appropriately because probably they capture the fonts from `fontconfig`.

**Urdu fonts collection**
I understand the fonts in eOS must be chosen carefully to match the very nice feel of the operating system. A collection of Urdu fonts is available at http://font.urduweb.org/. I hope you'll be able to find a font matching the overall look of the distribution.

**Previous posts**
Originally, I [posted](https://elementaryos.stackexchange.com/questions/22822/how-to-force-all-apps-to-use-system-fonts-the-ones-set-using-gnome-tweaks) the issue at elementary OS StackExchange where I was advised to report the bug to eOS developers. I also filed the issue with [Station community ](https://feedback.getstation.com/bugs-support/p/urdu-texts-displaying-improperly) and [Rambox developers](https://github.com/ramboxapp/community-edition/issues/2319) but I believe it's better to build support in the operating system instead of individual apps.