feat: add support for multi languages (#79)

* update backup settings description

* add rust-i18n

* translate

* .

* update translations

* fix

* update translate

* .

crates/i18n/src/lib.rs

@@ -0,0 +1,30 @@
+use rust_i18n::Backend;
+
+rust_i18n::i18n!("../../locales");
+
+pub struct I18nBackend;
+
+impl Backend for I18nBackend {
+    fn available_locales(&self) -> Vec<&str> {
+        _RUST_I18N_BACKEND.available_locales()
+    }
+
+    fn translate(&self, locale: &str, key: &str) -> Option<&str> {
+        let val = _RUST_I18N_BACKEND.translate(locale, key);
+        if val.is_none() {
+            _RUST_I18N_BACKEND.translate("en", key)
+        } else {
+            val
+        }
+    }
+}
+
+#[macro_export]
+macro_rules! init {
+    () => {
+        rust_i18n::i18n!(backend = i18n::I18nBackend);
+    };
+}
+
+pub use rust_i18n::set_locale;
+pub use rust_i18n::t;