[7.x] [Dashboard] [Embeddable] Add Ability to Defer Embeddable Loaded State (#107227)

[ThomThomson]

Backports the following commits to 7.x:

• [Dashboard] [Embeddable] Add Ability to Defer Embeddable Loaded State ([Dashboard] [Embeddable] Add Ability to Defer Embeddable Loaded State #107227)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 5296100
• Storybooks Preview

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
dashboard	221.9KB	221.4KB	-457.0B
lens	1.7MB	1.7MB	+80.0B
maps	3.2MB	3.2MB	+94.0B
total			-283.0B

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
embeddable	159.4KB	159.8KB	+449.0B

Unknown metric groups

API count

id	before	after	diff
embeddable	460	467	+7
maps	213	214	+1
total			+8

API count missing comments

id	before	after	diff
embeddable	388	391	+3
maps	212	213	+1
total			+4

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@elasticmachine merge upstream