Improve Tooltip UX by enabling delay by default

[kerwin612]

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Summary

Changed default needsDelay from false to true because:

• Most tooltips benefit from hover delay to allow cursor movement to content
• Prevents unintended tooltip disappearance during mouse transition
• Aligns with modern UI tooltip behavior expectations
• Reduces need for developers to manually enable this feature in each implementation

For example: Users expect to be able to move their cursor from the trigger to the tooltip content (to copy text or interact with content) without the tooltip disappearing immediately - this change addresses that common use case.
Also reduced delay from 500ms to 300ms for better responsiveness while maintaining usability.

Screenshots

Before	After
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Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

[Copilot]

Pull Request Overview

This PR improves the tooltip user experience by enabling hover delay by default and reducing the delay duration.

• Set needsDelay default to true in the base Tooltip component
• Changed hide delay from 500ms to 300ms
• Removed redundant needsDelay props from tooltip usages and updated one test

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
web/app/signin/oneMoreStep.tsx	Removed explicit needsDelay prop
web/app/components/workflow/nodes/_base/components/prompt/editor.tsx	Removed explicit needsDelay prop
web/app/components/workflow/nodes/_base/components/agent-strategy-selector.tsx	Removed explicit needsDelay prop
web/app/components/plugins/plugin-detail-panel/tool-selector/tool-item.tsx	Removed explicit needsDelay prop
web/app/components/plugins/plugin-detail-panel/multiple-tool-selector/index.tsx	Removed explicit needsDelay prop
web/app/components/plugins/plugin-detail-panel/endpoint-list.tsx	Removed explicit needsDelay prop
web/app/components/header/account-setting/model-provider-page/provider-added-card/model-list-item.tsx	Removed explicit needsDelay prop
web/app/components/header/account-setting/model-provider-page/model-parameter-modal/status-indicators.tsx	Removed explicit needsDelay props
web/app/components/header/account-setting/members-page/index.tsx	Removed explicit needsDelay prop
web/app/components/datasets/documents/list.tsx	Removed explicit needsDelay prop
web/app/components/base/tooltip/index.tsx	Enabled default needsDelay, set default timeout to 300ms
web/app/components/base/tooltip/index.spec.tsx	Added needsDelay={false} in test to override default
web/app/components/app/configuration/prompt-value-panel/index.tsx	Removed explicit needsDelay prop
web/app/components/app/configuration/config/agent/agent-tools/index.tsx	Removed explicit needsDelay props
web/app/(commonLayout)/datasets/(datasetDetailLayout)/[datasetId]/layout-main.tsx	Removed explicit needsDelay prop

Comments suppressed due to low confidence (1)

web/app/components/base/tooltip/index.spec.tsx:53

• Add a test case to verify the default delay behavior (i.e., without explicitly setting needsDelay) to ensure the tooltip remains open for 300ms before closing.

      const { container } = render(<Tooltip popupContent="Tooltip content" triggerClassName={triggerClassName} needsDelay={false} />)