chore(i18n): update i18n (#15191)

#### PR Dependency Tree


* **PR #15191** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Updated sign-in, sign-up, and email content to show the correct server
name for cloud and self-hosted setups.
* Added clearer workspace status messages for syncing, local workspaces,
and server-connected workspaces.
* Introduced localized text updates for more languages, including new
locale coverage.

* **Bug Fixes**
* Replaced outdated “Cloud” wording throughout the app with more
accurate “Sync” and self-hosted terminology.
* Improved account deletion, password reset, sharing, and storage
prompts for clearer user guidance.
* Updated workspace status labels and tooltips to better reflect the
current server connection.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/__tests__/__snapshots__/mails.spec.ts.md

@@ -65,7 +65,7 @@ Generated by [AVA](https://avajs.dev).
           <td>␊
             <p␊
               style="font-size:20px;line-height:28px;font-weight:600;font-family:Inter, Arial, Helvetica, sans-serif;margin-top:24px;margin-bottom:0;color:#141414">␊
-              Sign in to AFFiNE Cloud␊
+              Sign in to AFFiNE␊
             </p>␊
           </td>␊
         </tr>␊
@@ -205,7 +205,7 @@ Generated by [AVA](https://avajs.dev).
           <td>␊
             <p␊
               style="font-size:20px;line-height:28px;font-weight:600;font-family:Inter, Arial, Helvetica, sans-serif;margin-top:24px;margin-bottom:0;color:#141414">␊
-              Sign up to AFFiNE Cloud␊
+              Sign up to AFFiNE␊
             </p>␊
           </td>␊
         </tr>␊