[Design] Update Form Introduction template in Figma

[babsdenney]

Description

The form introduction template has recently been updated in the docs site and we need to make the updates to the Figma template in the pattern library.

Here are the updates required in this comment ticket #74785

Details

• Updates to Form introduction template #74785
• Introduction template in VADS
• Introduction template in Figma

Tasks

• [ ] Reach out to the original creators of ticket #74785 to let them know you are working on this issue.
• [ ] Create designs for template
• [ ] Review designs with the original ticket creators
• [ ] Review designs with PO and DST designers
• [ ] Review designs with developers and accessibility specialist
• [ ] Review designs with DST members (Carol can help schedule this)
• [ ] Address any comments from reviews, if necessary
• [ ] Comment on this ticket with any accessibility considerations engineers may need to know
• [ ] Comment on this ticket with content specifications (e.g. labels and error messages)
• [ ] Comment on this ticket with a link to the designs and post in DST Slack channel

Acceptance Criteria

• [ ] Template design is complete and has been reviewed
• [ ] Accessibility and development considerations have been added to this ticket, if necessary
• [ ] Content specifications have been added to this ticket, if necessary
• [ ] Link to design has been added to this ticket and shared in Slack

[caw310]

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