perf(server): add group.linkeddatasetschema index

[orisano]

Overview

What I've done

What I haven't done

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Memo

[netlify]

✅ Deploy Preview for reearth-web canceled.

Name	Link
🔨 Latest commit	02155fd
🔍 Latest deploy log	https://app.netlify.com/sites/reearth-web/deploys/64a5767bd17d8200085bfbb5

[codecov]

Codecov Report

Merging #563 (02155fd) into main (c603f7b) will increase coverage by 0.00%.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #563   +/-   ##
=======================================
  Coverage   27.32%   27.32%           
=======================================
  Files        1345     1345           
  Lines      144972   144968    -4     
  Branches     3541     3541           
=======================================
  Hits        39607    39607           
+ Misses     104213   104209    -4     
  Partials     1152     1152           

Flag	Coverage Δ
server	36.34% <ø> (ø)

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Impacted Files	Coverage Δ
server/internal/infrastructure/mongo/layer.go	7.05% <ø> (ø)
.../classic/components/molecules/Visualizer/index.tsx	0.00% <ø> (ø)
...assic/components/organisms/Published/core/hooks.ts	0.00% <ø> (ø)
...ssic/components/organisms/Published/core/index.tsx	0.00% <ø> (ø)