Add a share button when logged into cloud

[mrubens]

Important

Adds task sharing functionality with a new ShareService, UI updates, and i18n support for multiple languages.

• Behavior:
  • Adds ShareService class in ShareService.ts to handle task sharing, including creating share links and copying them to the clipboard.
  • Integrates ShareService into CloudService in CloudService.ts, adding shareTask() and canShareTask() methods.
  • Updates webviewMessageHandler.ts to handle shareCurrentTask message, showing success or error messages.
• UI:
  • Adds share button to TaskActions.tsx in webview-ui/src/components/chat/ when sharingEnabled is true.
  • Updates ClineProvider.ts to include sharingEnabled state.
• Tests:
  • Adds ShareService.test.ts to test ShareService functionality.
• Utils:
  • Adds getUserAgent() function in utils.ts for consistent user-agent string.
• i18n:
  • Updates multiple language files in webview-ui/src/i18n/locales/ to include translations for share task functionality.

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[jr]

Seems good generally. Left some comments about stuff I'd consider cleaning up a little.

Ideally we'd also handle the case where your organization has not enabled sharing more gracefully: right now it leads to a "failed, try again" message that won't actually be able to succeed unless the org admins change their settings.

[jr]

We might consider using fetch instead of axios. I have an incomplete cleanup task to remove axios from AuthService that I keep not getting to a clean state.

Main motivation (other than not using a library unless we have to): as far as I can tell you can do a better job of setting timeouts with fetch than axios, which is something we should start doing for most of these requests (another cleanup task I haven't gotten to yet). Hopefully those will be better examples for Roo too, although maybe that's too optimistic.

That would mean you'd need to explicitly check the status & fail on non-2xx, since that behavior's different between fetch and axios.

[mrubens]

I like the idea of changing all of the axioses to fetches as a follow up and adding a rules file with instructions to use fetch instead going forward.