Gedling Borough Council: Use alternative name for cleaner values

[jamesmacwhite]

Following #763. I noticed you are having to do some replace calls on the original name generated from the iCal. There's also a bug whereby certain values that are changed collections become Black Bin (Changed ) after the replace calls.

All JSON endpoints now provide an alternativeName value for any collection, which provides a modified name value which removes the "Day" or "(Changed Collection)" values, which is cleaner for this use case. This is automatically generated at build, allowing you to simplify your codebase.

Here's the new values of name vs alternativeName:

Name	Alternative name
Black Bin Day (Changed Collection)	Black Bin
Green Bin Day	Green Bin
Green Bin + Glass Box Day	Green Bin + Glass Box
Garden Waste Collection	Garden Bin

{
      "name": "Black Bin Day",
      "alternativeName": "Black Bin",
      "weekday": "Friday",
      "isOccurrence": true,
      "type": "black-bin",
      "collectionDate": "2023-12-08",
      "isChangedCollection": false
}

Happy to adjust the tweak the format if needed. This PR updates the column being used to the new alternativeName key

I have also documented the JSON endpoints in full.

Hope it's useful!

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```diff @@ Coverage Diff @@ ## master #764 +/- ## =========================================== - Coverage 98.61% 87.98% -10.64% =========================================== Files 2 3 +1 Lines 144 208 +64 =========================================== + Hits 142 183 +41 - Misses 2 25 +23 ```

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[jamesmacwhite]

I have fixed the commit message to clear the lint error.