i18n: add translations for 30 locales from Quartz v4

src/i18n/locales/ru-RU.ts

@@ -0,0 +1,20 @@
+export default {
+  pages: {
+    folderContent: {
+      folder: "Папка",
+      itemsUnderFolder: ({ count }: { count: number }) =>
+        `в этой папке ${count} элемент${getForm(count, "", "а", "ов")}`,
+    },
+  },
+  components: {},
+};
+
+function getForm(number: number, form1: string, form2: string, form5: string): string {
+  const remainder100 = number % 100;
+  const remainder10 = remainder100 % 10;
+
+  if (remainder100 >= 10 && remainder100 <= 20) return form5;
+  if (remainder10 > 1 && remainder10 < 5) return form2;
+  if (remainder10 == 1) return form1;
+  return form5;
+}

src/i18n/locales/th-TH.ts

@@ -0,0 +1,9 @@
+export default {
+  pages: {
+    folderContent: {
+      folder: "โฟลเดอร์",
+      itemsUnderFolder: ({ count }: { count: number }) => `มี ${count} รายการในโฟลเดอร์นี้`,
+    },
+  },
+  components: {},
+};