Aid in moving from deprecated language tags and fix a formatting issue

src/components/GenericDisplayItem.vue

@@ -14,7 +14,7 @@
         </router-link>
         <span v-else-if="item.uploaderName">{{ item.uploaderName }}<br /></span>
         <span v-if="isNumber(item.videos)">
-            {{ $tc('counts.videos', item.videos, { formatted: $store.getters['i18n/fmtFullNumber'](item.videos) }) }}
+            {{ $tc('counts.videos', item.videos, { n: $store.getters['i18n/fmtFullNumber'](item.videos) }) }}
         </span>
       </v-card-text>
     </v-card>

src/plugins/i18n.js

@@ -50,6 +50,10 @@ export const i18n = new VueI18n({
 	messages
 })
 
+export const DEPRECATED_LANGUAGES_MAP = new Map([
+	['bn-Beng', 'bn-IN']
+])
+
 export const TIME_AGO_EXCEPTIONS = {
 	'bn-IN': 'bn',
 	'nb-NO': 'nb',
@@ -171,6 +175,9 @@ async function loadFormatting (locale) {
 }
 
 export async function changeLocale (lang) {
+	if (DEPRECATED_LANGUAGES_MAP.has(lang)) {
+		lang = DEPRECATED_LANGUAGES_MAP.get(lang)
+	}
 	await Promise.all([
 		loadLocale(lang),
 		syncStylesPerLanguage(lang),