H-3699, H-3374: Use and set value dataTypeId in the entity editor

[CiaranMn]

🌟 What is the purpose of this PR?

We've updated entities' metadata to track the dataTypeId of each leaf value in their properties, to be able to distinguish between data types which have the same primitive value but different semantic meaning (or other constraints).

This PR updates the entity editor to actually use the dataTypeId to know what data type a value is of, rather than guessing it solely from the value, which is now impossible.

As a drive-by it removes reference to the EmptyList type which we are not using.

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

• do not affect the execution graph

⚠️ Known issues

This PR has some partial code to do with validating entities which will be completed as part of H-3697 once unblocked by Graph API work.

H-3373: the editor doesn't yet support new custom data types, e.g. enums, tuples, array data.

🐾 Next steps

• H-3700: the data type picker needs updating to handle inheritance trees for data type, and to respect abstract data types which can't be instantiated (i.e. don't allow selecting them as the type for a value)
• H-3751: disable users creating types which aren't yet supported in the editor (various nested arrays)

🛡 What tests cover this?

• Entity editor has a basic 'set property' test in the Playwright tests.

❓ How to test this?

1. edit an entity in the preview deployment

[codecov]

Codecov Report

Attention: Patch coverage is 2.70270% with 72 lines in your changes missing coverage. Please review.

Project coverage is 23.00%. Comparing base (30313be) to head (00bd165).
Report is 454 commits behind head on main.

Files with missing lines	Patch %	Lines
...ibs/@local/hash-isomorphic-utils/src/data-types.ts	0.00%	61 Missing ⚠️
...i/src/graphql/resolvers/knowledge/entity/entity.ts	0.00%	5 Missing ⚠️
...s/hash-api/src/graph/knowledge/primitive/entity.ts	0.00%	4 Missing ⚠️
...hash-isomorphic-utils/src/generate-entity-label.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5813      +/-   ##
==========================================
- Coverage   23.07%   23.00%   -0.08%     
==========================================
  Files         568      568              
  Lines       19103    19165      +62     
  Branches     2697     2715      +18     
==========================================
  Hits         4408     4408              
- Misses      14643    14705      +62     
  Partials       52       52              

Flag	Coverage Δ
apps.hash-ai-worker-ts	1.32% <ø> (ø)
apps.hash-api	1.16% <0.00%> (-0.01%)	⬇️
local.hash-backend-utils	8.80% <ø> (ø)
local.hash-graph-sdk	100.00% <100.00%> (ø)
local.hash-isomorphic-utils	0.99% <0.00%> (-0.04%)	⬇️
local.hash-subgraph	24.54% <ø> (ø)

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