Studio: Add initial support for Ukrainian translations (#452)

* Add Ukrainian locale to Studio app

---------

Co-authored-by: Kateryna Kodonenko <kateryna@automattic.com>

docs/localization.md

@@ -7,7 +7,7 @@ into the app is somewhat manual at the moment.
 ## Supported Languages
 
 We currently support the magnificent 16 languages defined in `src/lib/locale.ts`, 
-as well as Polish and Vietnamese.
+as well as Polish, Vietnamese and Ukrainian.
 If you want to add support for another language you will need to add it to the
 `supportedLocales` array.
 
@@ -42,7 +42,7 @@ they will be left as English in the app.
    2. Click the **Project actions** menu.
    3. Click **Bulk Export**.
    4. Click **Select WP.Com Priority Languages** to only the magnificent 16 languages.
-   5. Select **Polish** and **Vietnamese**, too.
+   5. Select **Polish**, **Vietnamese** and **Ukrainian** too.
    6. Change the format to `Jed 1.x (.json)`.
    7. Leave the other fields as default and click **Export**.
 

src/lib/locale.ts

@@ -23,6 +23,7 @@ const supportedLocales = [
 	'sv',
 	'tr',
 	'vi',
+	'uk',
 	'zh-cn',
 	'zh-tw',
 ];