fix(admin-ui): sort supported languages alphabetically (#5479)

## What?
Added sorting to the `supportedLanguages` array in `packages/admin-ui/ui/src/i18n/index.ts`. This makes sure the languages in the dropdown are sorted alphabetically.

![image](https://github.com/medusajs/medusa/assets/42065266/aca6e5ab-f200-45bf-afb4-22d9bc1c9a66)

## Why?
As we're supporting more languages in the admin UI, this list was getting messy.  

## How?
By using `sort()` and `localeCompare()` on array declaration.

## Testing
Go to Medusa Admin locally, login and navigate to Settings > Personal information to test the language dropdown.

.changeset/rotten-kids-cough.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/admin-ui": patch
+---
+
+fix: sort supportedLanguages array

packages/admin-ui/ui/src/i18n/index.ts

@@ -66,7 +66,7 @@ export const supportedLanguages = [
     locale: "ru",
     name: "Русский"
   }
-]
+].sort((a, b) => a.locale.localeCompare(b.locale))
 
 const adminPath = getFullAdminPath()
 const pathToLoadFrom = `${adminPath}public/locales/{{lng}}/{{ns}}.json`