Locales: Add Nepali (ne) translation (Initial 300+ strings) (#4288)

* Improve Hindi translations (base.po)

* Improve all Fuzzy and more hindi translations

* Update base.po

* Update base.po

* Update Hindi translations in base.po

* Update translation for Network Manager iwd backend

* Create base.po

* Update base.po

* Update base.po

* Update languages.json

* Update base.po

* Complete Nepali translation and generated .mo file

* Update languages.json

* Update languages.json

* Update Nepali translations with system and user strings

* Add translations for Partitioning, Bootloader, and Network

* Add disk and configuration translations

* Reach 500+ lines: User management, NTP, and BTRFS subvolumes

Author: Nub-programmer