Allow h{1,2,3} tags in contact notices/questions

[davea]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.58%. Comparing base (68cadc8) to head (708849d).

Additional details and impacted files

@@               Coverage Diff               @@
##           surrey-cobrand    #4959   +/-   ##
===============================================
  Coverage           82.57%   82.58%           
===============================================
  Files                 392      392           
  Lines               30504    30508    +4     
  Branches             4815     4815           
===============================================
+ Hits                25190    25194    +4     
- Misses               3879     3880    +1     
+ Partials             1435     1434    -1     

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[dracos]

Looks fine, but if we're allowing this, we also need to fix the issue that notices appear in the front end wrapped in a needless <label> - which I don't think we want to have headings inside (I mean, shouldn't have the ones that are already allowed either!).

[dracos]

(I've made a commit now on surrey-cobrand that removes the label)