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/kab/libcosmic_yoda.ftl

@@ -0,0 +1,33 @@
+close = Mdel
+license = Turagt
+links = Iseɣwan
+developers = Ineflayen
+artists = Inaẓuren
+translators = Imsuqlen
+january = Yennayer { $year }
+february = Fuṛar { $year }
+march = Meɣres { $year }
+april = Yebrir { $year }
+may = Mayyu { $year }
+june = Yunyu { $year }
+july = Yulyu { $year }
+august = Ɣuct { $year }
+september = Ctembeṛ { $year }
+october = Tubeṛ { $year }
+november = Wambeṛ { $year }
+december = Dujembeṛ { $year }
+documenters = Imeskaren
+monday = Arim
+mon = Ari
+tuesday = Aram
+tue = Ara
+wednesday = Ahad
+wed = Aha
+thursday = Amhad
+thu = Amh
+friday = Sem
+fri = Sm
+saturday = Sed
+sat = Sd
+sunday = Acer
+sun = Ace