yoda: re-apply hard rename — libcosmic → libcosmic-yoda (0.1.0-yoda)

Reverts the soft-fork pivot (6736a596). Strategy chosen with user:
full cascade fork. Every consumer (leyoda/cosmic-files + each leyoda/app)
depends on libcosmic-yoda by explicit path, so there are no transitive
deps left asking for the upstream 'libcosmic' crate — no [patch]
unification issues, no two-version traps.

Changes:
- Cargo.toml: name = libcosmic-yoda, version = 0.1.0-yoda
- i18n/*/libcosmic.ftl -> libcosmic_yoda.ftl (71 locales)
- examples/*/Cargo.toml dep refs back to libcosmic-yoda
- compat stub features (winit=[], x11=[]) kept for upstream deps that
  might still request them during the migration window

cargo check --lib passes.

i18n/hu/libcosmic_yoda.ftl

@@ -0,0 +1,36 @@
+# Context Drawer
+close = Bezárás
+# About
+license = Licenc
+links = Hivatkozások
+developers = Fejlesztők
+designers = Tervezők
+artists = Művészek
+translators = Fordítók
+documenters = Dokumentálók
+january = { $year } január
+february = { $year } február
+march = { $year } március
+april = { $year } április
+may = { $year } május
+june = { $year } június
+july = { $year } július
+august = { $year } augusztus
+september = { $year } szeptember
+october = { $year } október
+november = { $year } november
+december = { $year } december
+monday = Hétfő
+tuesday = Kedd
+wednesday = Szerda
+thursday = Csütörtök
+friday = Péntek
+saturday = Szombat
+sunday = Vasárnap
+mon = H
+tue = K
+wed = Sze
+thu = Cs
+fri = P
+sat = Szo
+sun = V