feat: clustering layers

[issmail-basel]

Overview

What I've done

• Added clusters right Panel UI
• Added Cluster component
• Linked clusters front-end to back-end
• Add options to customize clusters

How I tested

• Add new cluster
• Customize it's look
• Add layers to it
• Publish project

Screenshot

[netlify]

✔️ Deploy Preview for reearth-web ready!

🔨 Explore the source changes: fcf5e3e

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[codecov]

Codecov Report

Merging #143 (fcf5e3e) into main (dae1376) will decrease coverage by 0.19%.
The diff coverage is 28.57%.

@@            Coverage Diff             @@
##             main     #143      +/-   ##
==========================================
- Coverage   44.42%   44.22%   -0.20%     
==========================================
  Files          56       56              
  Lines        1121     1135      +14     
  Branches      179      179              
==========================================
+ Hits          498      502       +4     
- Misses        570      580      +10     
  Partials       53       53              

Impacted Files	Coverage Δ
src/state/index.ts	77.41% <ø> (ø)
src/gql/graphql-client-api.tsx	36.41% <28.57%> (-0.34%)	⬇️

[rot1024]

Refactoring points (outside the scope of the PR):

• Standardize the implementation of Primitive component rendering: Cluster can accept children prop and render it.
• propertyRef in Cluster/index.tsx is not needed. The hooks can be simplified.