- README.md is now Russian (default page on GitHub); English moved to
README.en.md, both cross-linked; drop README.ru.md
- Increase BlurredTextSpan radius to 7dp and draw the blurred glyphs
multiple times so the number becomes an unreadable smudge
- New README.ru.md (Russian) with a download section pointing to the
GitHub releases page; both READMEs cross-link via a language switcher
- Add 'Download FoxiGram' row in Foxi settings opening the releases page
- Provide English and Russian strings for the download row and the
previously added phone-number privacy option