feat(side-sheet): add disableResize prop to hide the drag handle

[EdwardBrunton]

What

Adds an optional disableResize prop to SideSheet/SideSheetBase that hides the drag-to-resize handle. Defaults to false, so existing behavior is unchanged unless a consumer opts in.

Why

We're toggling the side sheet's width programmatically between two fixed sizes, and leaving the drag handle enabled let manual drags desync from that state. Hiding the handle avoids the desync entirely.

Changes

• packages/side-sheet/src/components/SideSheetBase.tsx: new disableResize?: boolean prop (default false); when true, passes a DISABLE_ALL_HANDLES object to re-resizable's enable prop instead of undefined, which otherwise preserves re-resizable's original default (all 8 directions enabled) exactly as before.
• storybook/src/stories/sidesheet/side-sheet.stories.tsx: added a disableResize boolean control to the basic story for manual testing.
• Changeset added for a minor bump of @equinor/fusion-react-side-sheet.

Testing

• bun run --filter @equinor/fusion-react-side-sheet build and lint pass.
• Manually verified via Storybook: toggling disableResize shows/hides the drag handle with no change to default behavior.

[changeset-bot]

🦋 Changeset detected

Latest commit: 5d660e8

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

This PR includes changesets to release 1 package

Name	Type
@equinor/fusion-react-side-sheet	Minor

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[EdwardBrunton]

Both failing checks appear unrelated to this PR: chromatic-deployment fails with "Missing project token" (likely secrets are not exposed to fork PRs), and biome fails on a pre-existing unused-variable lint issue in scripts/publish.js, which this PR does not touch.

[eikeland]

@EdwardBrunton, Thanks for the pr.

Could you remove DISABLE_ALL_HANDLES and pass false to the enable prop when resizing is disabled?

enable={disableResize ? false : undefined}

Also, could you add a separate disableResize story to demonstrate this behavior and remove the disableResize prop from the basic story? That keeps the basic example focused on the default behavior.

[EdwardBrunton]

@EdwardBrunton, Thanks for the pr.

Could you remove DISABLE_ALL_HANDLES and pass false to the enable prop when resizing is disabled?

enable={disableResize ? false : undefined}

Also, could you add a separate disableResize story to demonstrate this behavior and remove the disableResize prop from the basic story? That keeps the basic example focused on the default behavior.

Done 😁

[eikeland]

thank you @EdwardBrunton for the contribution.