chore(utils): blank character detection

src/lib/utils/blank.ts

@@ -0,0 +1,16 @@
+import type { Character } from '../types';
+
+const DEFAULT_LANGUAGES = ['Tau Ceti Basic'];
+
+export function isBlankCharacter(char: Character): boolean {
+	for (const value of Object.values(char.data)) {
+		if (value === '' || value === undefined || value === null || value === 0) continue;
+		if (Array.isArray(value)) {
+			if (value.length === 0) continue;
+			if (value.length === 1 && DEFAULT_LANGUAGES.includes(value[0])) continue;
+			return false;
+		}
+		return false;
+	}
+	return true;
+}