feat: Migrate more to VueV3 logic, navbar improvements

src/lib/index.js

@@ -1,5 +1,22 @@
-export { navigate, goBack, reload, getPath, getQuery, switchLanguageRoute } from './router/router.js';
+export { useRouter } from './router/useRouter.js';
 export { default as Router } from './router/Router.vue';
 
 export { currentLang, currentLocale, languageLocales, text, switchLang, usePageText } from './i18n.js';
+export { useLang } from './useLang.js';
+export { useImage } from './useImage.js';
+export { useYaml } from './useYaml.js';
+
+// Backwards compatibility exports from old utilities
+export { navigate, goBack, reload, getPath, getQuery, switchLanguageRoute } from './router/router.js';
 export { getLangText } from './langHelpers.js';
+export { loadYaml } from './yaml.js';
+export {
+  getRootAssetPath,
+  getOptimisedImagePath,
+  getHeroImagePath,
+  getHeroImageSrcSet,
+  getHeroImageFallback,
+  getResponsiveImageSrcSet,
+  getOptimisedImageSrcSet,
+  getOptimisedImageFallback
+} from './imageHelpers.js';