[Bexley][WW] Handle container removal requests

[nephila-nacrea]

For https://github.com/mysociety/societyworks/issues/4576 and some of https://github.com/mysociety/societyworks/issues/4575.

The normal 'request new' journey also includes options for removal, if property has containers that can be removed.
There is also a separate journey that handles removals only.

[skip changelog]

[codecov]

Codecov Report

Attention: Patch coverage is 98.42520% with 2 lines in your changes missing coverage. Please review.

Project coverage is 82.53%. Comparing base (e623f62) to head (0f878b2).
Report is 6 commits behind head on bexley-ww-container-requests.

Files with missing lines	Patch %	Lines
perllib/FixMyStreet/Cobrand/Bexley/Waste.pm	98.07%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@                       Coverage Diff                        @@
##           bexley-ww-container-requests    #5234      +/-   ##
================================================================
+ Coverage                         82.47%   82.53%   +0.06%     
================================================================
  Files                               410      410              
  Lines                             32197    32730     +533     
  Branches                           5147     5160      +13     
================================================================
+ Hits                              26554    27015     +461     
- Misses                             4128     4199      +71     
- Partials                           1515     1516       +1     

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[dracos]

Nice and clear, just a few small suggestions.
We can probably (later) look at if all the request forms can be refactored in a way to share bits (e.g. Kingston also has a removal page).

[dracos]

Looks good :)