feat: English version of the site, CV as text

- add English language: config, menus, i18n, translations of all pages and posts
- CV page renders the full resume in both languages with PDF download buttons
- remove salary from CV PDFs, Telegram is @xs0k0lx everywhere, English level B2
- fix broken CV menu link, update theme submodule to Public/blowfish

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "themes/blowfish"]
 	path = themes/blowfish
-	url = https://git.sokolab.xyz/Sokolab/blowfish.git
+	url = https://git.sokolab.xyz/Public/blowfish.git