feat: add support for language arrays

Closes #71

Author: Raphael Jackstadt

src/index.ts

@@ -338,7 +338,14 @@ export class I18n {
    */
   wTrans(key: string, replacements: ReplacementsInterface = {}): ComputedRef<string> {
     if (!this.activeMessages[key]) {
-      this.activeMessages[key] = key
+      const hasChildItems = this.activeMessages[`${key}.0`] !== undefined;
+
+      if (hasChildItems) {
+        const childItems = Object.entries(this.activeMessages).filter((item) => item[0].startsWith(`${key}.`)).map(item => item[1]);
+        this.activeMessages[key] = reactive(childItems);
+      } else {
+        this.activeMessages[key] = key;
+      }
     }
 
     return computed(() => this.makeReplacements(this.activeMessages[key], replacements))