chore(server): add spacing value type with padding and margin UI support

[yk-eukarya]

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Name	Link
🔨 Latest commit	2474a94
🔍 Latest deploy log	https://app.netlify.com/sites/reearth-web/deploys/64cb44ec3985900008106045

[codecov]

Codecov Report

Merging #616 (2474a94) into main (62d28ed) will decrease coverage by 0.01%.
The diff coverage is 12.65%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #616      +/-   ##
==========================================
- Coverage   28.43%   28.42%   -0.01%     
==========================================
  Files        1455     1456       +1     
  Lines      158317   158396      +79     
  Branches     3762     3762              
==========================================
+ Hits        45018    45028      +10     
- Misses     112142   112211      +69     
  Partials     1157     1157              

Flag	Coverage Δ
server	35.52% <12.65%> (-0.06%)	⬇️

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Files Changed	Coverage Δ
.../internal/adapter/gql/gqlmodel/convert_property.go	1.23% <0.00%> (-0.07%)	⬇️
server/pkg/property/schema_field_ui.go	85.71% <ø> (ø)
server/pkg/property/value.go	37.34% <ø> (ø)
server/pkg/property/value_spaceing.go	16.94% <16.94%> (ø)