fix(issues): Restyle non member in suspect commit

[scttcper]

• Removes "not a member" and replaces it with a question tooltip thing.
• Fixes long emails overflowing

https://www.notion.so/sentry/Suspect-commit-underlines-mean-different-things-7d4bfb01840945e4b1bd913f539f337b?pvs=4

before - ambiguous link vs hover area:

after:

hoverstate

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

:white_check_mark: All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
static/app/components/commitRow.tsx	83.33%	1 Missing :warning:

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #76579       +/-   ##
===========================================
+ Coverage   55.60%   78.14%   +22.53%     
===========================================
  Files        6896     6905        +9     
  Lines      306661   306804      +143     
  Branches    50282    52789     +2507     
===========================================
+ Hits       170525   239758    +69233     
+ Misses     131994    60712    -71282     
- Partials     4142     6334     +2192