Student names not capitalized in feedback window

# Student names not capitalized in feedback window

Student names render lowercase in the overall feedback window even when properly capitalized in the source data.

## Reproduction

1. As a teacher, open the overall feedback panel for any student's submission.
2. Observe that the student's name is rendered lowercase.

## Expected

Names render with the casing stored in the user record (e.g., "Ryan").

## Actual

Names render lowercase (e.g., "ryan").

## Impact

Cosmetic. Cited as super nit-picky by Kevin on 2026-02-27, alongside acknowledgement that the related double-name bug had been fixed.

## Suspected cause

Stray `text-transform: lowercase` or a string lowercase call in the feedback rendering path.

## Workaround

None needed.