[Bristol][FMS] Contacts with an email as the contact should be emailed

[MorayMySoc]

All reports are being sent to open311, but we still want reports with an email contact to be sent to the email contact after being sent to open311.

https://github.com/mysociety/societyworks/issues/4831

[skip changelog]

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 82.30%. Comparing base (176fd75) to head (c2434d7).

Files with missing lines	Patch %	Lines
perllib/FixMyStreet/Cobrand/BathNES.pm	75.00%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5406      +/-   ##
==========================================
+ Coverage   82.29%   82.30%   +0.01%     
==========================================
  Files         425      425              
  Lines       33519    33527       +8     
  Branches     5404     5408       +4     
==========================================
+ Hits        27583    27596      +13     
+ Misses       4336     4329       -7     
- Partials     1600     1602       +2     

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