Merge branch 'regional-flag-fix' into 'main'

regional flag fix

See merge request soapbox-pub/soapbox!3075

src/schemas/utils.ts

@@ -20,7 +20,7 @@ function filteredArray<T extends z.ZodTypeAny>(schema: T) {
 }
 
 /** Validates the string as an emoji. */
-const emojiSchema = z.string().refine((v) => /\p{Extended_Pictographic}/u.test(v));
+const emojiSchema = z.string().refine((v) => /\p{Extended_Pictographic}|[\u{1F1E6}-\u{1F1FF}]{2}/u.test(v));
 
 /** Map a list of CustomEmoji to their shortcodes. */
 function makeCustomEmojiMap(customEmojis: CustomEmoji[]) {