feat: widget align system

[KaWaite]

Overview

• Add WidgetAlignSystem to backend to handle how the widgets will be placed in the Editor on the front-end.
• Add WidgetLayout to Plugin's extensions to handle how the widget will be handled with the align system.
• Includes migrations for both plugins(adding the WidgetLayout to all plugin's extensions) and scene (adding a widget align system to all already made scenes)

What I've done

• Develop a widget align system to handle alignment of enabled widgets
• Added WidgetLayout to Plugin/sceneWidget
• Added WidgetAlignSystem to scene
• DB migration for adding alignSystem to scenes

What I haven't done

How I tested

• with graphql queries and mutations, in graphql playground, added, removed, updated widget align system
• tested both migrations on local machine

Which point I want you to review particularly

• Everything

Memo

[codecov]

Codecov Report

Merging #19 (f63fb9b) into main (33f4c7c) will decrease coverage by 0.05%.
The diff coverage is 52.01%.

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   16.57%   16.52%   -0.06%     
==========================================
  Files         241      246       +5     
  Lines       41399    42966    +1567     
==========================================
+ Hits         6862     7099     +237     
- Misses      33545    34862    +1317     
- Partials      992     1005      +13     

Impacted Files	Coverage Δ
internal/adapter/gql/generated.go	0.00% <ø> (ø)
internal/adapter/gql/resolver_mutation_scene.go	0.00% <0.00%> (ø)
internal/infrastructure/mongo/mongodoc/plugin.go	0.00% <0.00%> (ø)
internal/infrastructure/mongo/mongodoc/scene.go	0.00% <0.00%> (ø)
...ernal/infrastructure/mongo/mongodoc/scene_align.go	0.00% <0.00%> (ø)
internal/usecase/interactor/scene.go	0.00% <0.00%> (ø)
pkg/scene/builder/encoder.go	92.85% <ø> (ø)
pkg/scene/widget.go	73.33% <33.33%> (-26.67%)	⬇️
pkg/plugin/extension.go	71.87% <60.86%> (-28.13%)	⬇️
pkg/scene/widget_align_system.go	79.59% <79.59%> (ø)
... and 15 more