[MPDX-9996] - Refresh NSO housing options and explain each one

[wjames111]

Description

Refreshes the New Staff Orientation housing options and adds a short explanation under each one so new staff can tell which situation applies to them.

• Updated the housing option wording per the ticket (for example "Sharing 2 in hotel/suite dorm room" and "Virtual / Local / Commuting"). The labels come from a shared helper, so the questionnaire, its summary, and the Goal Settings housing dropdown all update together.
• Each radio option in the NSO Questionnaire now shows a one-line description in small grey text underneath its label. Screen readers get the label as the option's name and the description via aria-describedby.
• Kept "Married couple" and "Family" as separate options because the API stores them as separate values with different room costs. Both share the ticket's "staying together as a couple or family" description.

Jira: MPDX-9996

Testing

• Go to HR Tools and open the NSO MPD Questionnaire
• Go to the NSO Information step
• Check that each housing option shows the new wording with a grey explanation underneath
• Open a New Staff Goal Calculation's Goal Settings and check the Housing dropdown uses the same new wording

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 /quality:agent-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

[github-actions]

Bundle sizes [mpdx-react]

Compared against a600f11

No significant changes found

[github-actions]

Preview branch generated at https://MPDX-9996.d3dytjb8adxkk5.amplifyapp.com

[wjames111]

Review summary for MPDX-9996 (senior level, review-only):

• Wording refresh and per-option descriptions are wired through the shared housing helper, so questionnaire, summary, and Goal Settings stay consistent.
• Accessibility is handled well: label stays the radio's name, description is linked via aria-describedby, with tests covering both.
• No must-fix issues. Tests, lint, and tsc pass.
• Reuse: CreateGoalDialog already renders the same labelled radio-with-description markup; worth a shared component.
• Minor: no vertical gap between multi-line options; the 'each option' test only asserts two descriptions.
• Scope check: the Goal Settings dropdown gets the new labels but not the descriptions, and couple/family share one description.

[wjames111]

[Pattern] Couple and family have distinct labels and API costs but share one description. Worth confirming with the reporter whether Family should get its own wording.

[wjames111]

[Pattern] The Goal Settings housing dropdown (NsoInformationSection) picks up the new labels but not these descriptions. The ticket says 'underneath each option'; confirm whether the dropdown is in scope or questionnaire-only.