feat: update featured article for Castopod v1.0.0 release

astro-i18next.config.ts

src/components/molecules/PinnedArticleBanner.astro

src/components/organisms/Community.astro

src/components/organisms/Features.astro

src/components/organisms/Footer.astro

src/components/organisms/Header.astro

src/components/organisms/MainNav.astro

src/components/organisms/OpenSource.astro

src/locales/en/common.json

src/locales/en/home.json

src/locales/fr/common.json

src/locales/fr/home.json

src/pages/fr/index.astro

src/pages/index.astro