Split fork-added keys into a dedicated HellionStrings resource bundle separate
from the Language.*.resx Chat-2 Crowdin heritage.
- Add HellionStrings.resx (EN source, 328 keys) and HellionStrings.Designer.cs
- Add 22 HellionStrings.<code>.resx variants: ca, cs, da, de, es, fi, fr, hu, it,
ja, ko, nb, nl, pl, pt-BR, pt-PT, ro, ru, sv, tr, uk, zh-Hans, zh-Hant
- Add matching Language.<code>.resx siblings for the new locales with the
Hellion Forge maintainer header
- FR pass: align labels with the rest of the UI
(Confidentialité, Visualiseur, Violet indigo)
