feat(dashboards): Adds Create Dashboard with Seer frontend modal and preview page

[edwardgou-sentry]

Adds a new Create Dashboard with Seer button:

• Opens a GenerateDashboardFromSeerModal modal which accepts a prompt text field from the user
  • Clicking generate starts a seer run via the orgslug/dashboards/generate/ endpoint and navigates user to the CreateFromSeer preview page with the run_id
• CreateFromSeer preview page polls the seer run_id and renders a dashboard preview using the artifact response when complete

[cursor]

New styled component instead of core components

Low Severity

MessageBlock is a newly added styled() call wrapping MarkedText. Per the frontend guidelines, core components like Container (for padding, background, border-radius) and Text (for font-size, color) are preferred over new styled() calls. The styling here (padding, background, border-radius, font-size, color) maps directly to props available on those core layout and typography primitives.

 

^{Triggered by project rule: Frontend guidelines}

[DominikB2014]

This one is valid, but not always possible

[DominikB2014]

code lgtm overall, there's a couple comments regarding flag checks which look like they could be valid but i'll leave it up to you to go through those

[DominikB2014]

This one is valid, but not always possible

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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