[MPDX-9289] - ASR progressiveApprovalTiers

[wjames111]

Description

Update capSubContent with approver and approvalTimeframe
Unsure where else the progressiveApprovalTier data is needed. The Figma design eludes to a progressive approval page with a link to it on the about page. The design/information for the page does not exist. As of now the only place this data is used is in the capSubContent which shows in the Total Annual Salary card.

Testing

• Got to ASR page
• create a new ASR
• Put in amounts that will make you exceed your cap.
• Click submit
• Check that a modal appears with the amount, approvalTimeframe and approver.

Checklist:

• I have given my PR a title with the format "MPDX-(JIRA#) (summary sentence max 80 chars)"
• I have applied the appropriate labels (Add the label "Preview" to automatically create a preview environment)
• I have run the Claude Code /pr-review command locally and fixed any relevant suggestions
• I have requested a review from another person on the project
• I have tested my changes in preview or in staging
• I have cleaned up my commit history