Add TPMA sub-type dropdown

[matt-dray]

Close #226.

• Separated TPMA dropdown into two: split 'code: name (sub-type)' into 'name' and 'sub-type'.
• Protected against transient states where the name and sub-type could get desynchronised.
• Enabled bookmark restoration of sub-type state.
• Added full TPMA name including TPMA code into the description card.
• Update tests.

[matt-dray]

Hi @swyatt-SU, I've added in a sub-type dropdown to the app and deployed it to the development version of the app. We're interested in your thoughts.

To note:

• the sub-type box dropdown is disabled and says 'No TPMA sub-types to show' if that's the case
• I've rendered the 'full' TPMA name in the 'Description' box
• the development version of the app also has the SU theme applied, so feel free to comment on that as well

Feel free to make some comments as well, @Lextuga007, though this is still a draft PR for now and there'll be a chance for proper review when ready.

[Lextuga007]

I noticed a spelling mistake in the description but that's not related to this PR code but just to note I've raised an issue from where the text originates (currently in two repositories and https://github.com/The-Strategy-Unit/nhp_planning/issues/734 to this to be reconsidered).

[swyatt-SU]

Thanks @matt-dray . All looks good to me.

When the app opens should it default to the overview tab? For me it's starting on the explore data tab.

[matt-dray]

Thanks @Lextuga007. This repo currently reads the descriptions directly from the nhp_inputs repository on GiHub, but we should prefer the centralised TPMAs repo once they're there.

And thanks @swyatt-SU. The current production version of the app goes straight to the data exploration page as well, so this dev version is just copying that behaviour. I think the idea was that the majority of users just want to start digging in. Happy to review that though.

I also noticed that the default TPMA in this dev version is not the same one as the production app—Ambulatory Care Sensitive Admissions (Acute Conditions)—so I'll make sure that's set correctly as well. (Edit: this has been updated in the latest commit and redeployed to dev.)

[matt-dray]

Tests passing now, so taking it out of draft. After merge it can be released as v0.8.0 and deployed.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (0af6eb1) to head (6aee017).

Additional details and impacted files

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##              main      #243   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           27        27           
  Lines         1234      1294   +60     
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+ Hits          1234      1294   +60     

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