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_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