rename: libcosmic → libcosmic-yoda (fork 0.1.0-yoda)

Fork point: pop-os/libcosmic 1.0.0 + perf/quickwins-bundle + macOS
window controls feature. From here the crate diverges under the yoda
lineage with its own versioning.

Changes:
- Cargo.toml: name = libcosmic-yoda, version = 0.1.0-yoda
- [lib] name = cosmic kept unchanged — consumer code still does 'use cosmic::...'
- examples/*/Cargo.toml: updated all libcosmic dep references to libcosmic-yoda
- i18n/*/libcosmic.ftl renamed to libcosmic_yoda.ftl (71 locales) to match
  the new name expected by fluent_language_loader!() macro

cargo check --lib passes. Examples not yet validated — Phase 2 (Wayland-only
cut) will rework them anyway.

i18n/kab/libcosmic.ftl

@@ -1,33 +0,0 @@
-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