Follow-up from adding the feedback widget on error pages

Problem to solve

Following up from https://github.com/gitpod-io/gitpod/pull/10071, here are some UX issues and side effects we need to address for the feedback widget in the dashboard. Cc @laushinka @andrew-farries @jldec

• 1. Modal padding and element order issues, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880607348.
• 2. Form submission message issues, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880611543.
• 3. Form submission message differences in dashboard v. error pages, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880793513.
• 4. Ability to dismiss the message in all cases, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880794084.
• 5. More padding issues, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880804170.
• 6. Regression issues for the colors used, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880804204.
• 7. More margin issues, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880808432.
• 8. Text alignment issues, see https://github.com/gitpod-io/gitpod/pull/10071#discussion_r880817950.
• 9. Consider updating the design of the submission step in the modal, see screenshot in #10124.

Review PR #10071 and its linked discussions, then compare the widget on dashboard and error pages; use #10124 for the submission-step design context. Done means all nine checklist items have agreed behavior and the modal’s spacing, ordering, messaging, dismissal, colors, margins, and alignment match across both locations.