Update dash requirement from ~=3.4.0 to ~=4.1.0

[dependabot]

Updates the requirements on dash to permit the latest version.

Release notes

Sourced from dash's releases.

Dash v4.1.0

Added

• #3637 Added debounce prop to Dropdown.

Fixed

• #3629 Fix date pickers not showing date when initially rendered in a hidden container.
• #3660 Allow same date to be selected for both start and end in DatePickerRange components
• #3600 DatePicker support for the Moment.js Y year token
• #3627 Make dropdowns searchable wheen focused, without requiring to open them first
• #3656 Improved dropdown performance for large collections of options
• #3643 Fix multiselect dropdown with components as labels
• #3609 Add backward compat alias for _Wildcard

Changelog

Sourced from dash's changelog.

[4.1.0] - 2026-03-23

Added

• #3637 Added debounce prop to Dropdown.

Fixed

• #3629 Fix date pickers not showing date when initially rendered in a hidden container.
• #3660() Allow same date to be selected for both start and end in DatePickerRange components
• #3600() DatePicker support for the Moment.js Y year token
• #3627() Make dropdowns searchable wheen focused, without requiring to open them first
• #3656() Improved dropdown performance for large collections of options
• #3643() Fix multiselect dropdown with components as labels
• #3609() Add backward compat alias for _Wildcard

[4.0.0] - 2026-02-03

Added

• Finalize all redesigned dash core components
• Add a prop to sliders, allow_direct_input, that can be used to disable the inputs rendered with sliders.
• Improve CSS styles in calendar when looking at selected dates outside the current calendar month (show_outside_days=True)

[4.0.0rc6] - 2026-01-07

Added

• Restored missing implementation for with_portal and with_full_screen_portal in datepickers

Changed

• Bugfixes for feedback received in rc5: notably, popovers are position: fixed once again.

[4.0.0rc5] - 2025-12-16

Added

• #3464 Add folder upload functionality to dcc.Upload component. When multiple=True, users can now select and upload entire folders in addition to individual files. The folder hierarchy is preserved in filenames (e.g., folder/subfolder/file.txt). Files within folders are filtered according to the accept prop. Folder support is available in Chrome, Edge, and Opera; other browsers gracefully fall back to file-only mode. The uploaded files use the same output API as multiple file uploads.

Changed

• Bugfixes for feedback received in rc4

[4.0.0rc4] - 2025-12-04

Added

• New dcc.Button component that mirrors html.Button but with default styles applied

[4.0.0rc3] - 2025-11-27

• Modernized dcc.Tabs
• Modernized dcc.DatePickerSingle and dcc.DatePickerRange
• DatePicker calendars can now accept translations as an external script, either with Dash's external_scripts or from the assets folder. See documentation for the underlying library that supports this.

Changed

• dcc.Tab now accepts a width prop which can be a pixel or percentage width for an individual tab.

... (truncated)

Commits

• 6c500cd Merge pull request #3686 from plotly/master-4.1.0
• 8830051 update build artifacts
• 6a7bb4a Merge branch 'dev' into master-4.1.0
• e33d2e4 Merge pull request #3685 from plotly/release/4.1.0
• 4e70240 Merge branch 'dev' into release/4.1.0
• 67992ea Merge pull request #3672 from BSd3v/fix/3661-compute-graphs2
• 136e66c add missing changelog entry
• 575c7f1 bump versions
• ac5ca89 Merge branch 'dev' into fix/3661-compute-graphs2
• aede54b Merge branch 'dev' into release/4.1.0
• Additional commits viewable in compare view

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