v6: Add ResponseTableView

[trevor-scheer]

Summary

Adds ResponseTableView, the Table view for the response pane. When the user switches to Table, it walks the response body looking for the first list of objects and renders it as an HTML table with sticky headers. Nested objects and arrays in cells are shown as Object {n} / Array [n] shorthand to keep rows scannable. Responses that contain no list field show a clear empty state rather than a blank panel.

Test plan

• Switch to Table view after running a list query and verify rows and column headers appear
• Switch to Table view for a non-list response (e.g. a single object or scalar) and verify the empty-state message is shown
• Check that nested object/array cells display Object {n} / Array [n] shorthand
• Confirm ragged rows (objects with different keys) union columns correctly; missing cells render a placeholder character
• Verify sticky column headers stay fixed when scrolling a long result set
• Review Storybook stories: ListOfObjects, RaggedRows, NestedObjects, NestedList, PrimitiveArray, EmptyArray, NoListField, NoResponse

Refs: #4219

[changeset-bot]

🦋 Changeset detected

Latest commit: c1376d6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@graphiql/react	Minor
@graphiql/plugin-code-exporter	Major
@graphiql/plugin-doc-explorer	Major
@graphiql/plugin-explorer	Major
@graphiql/plugin-history	Major
graphiql	Patch

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