Bump apexcharts from 5.10.6 to 5.11.0 in /ui/changes

[dependabot]

Bumps apexcharts from 5.10.6 to 5.11.0.

Release notes

Sourced from apexcharts's releases.

💎 Version 5.11.0

Highlights

WCAG 2.2 AA Accessibility Remediation

ApexCharts 5.11.0 ships a comprehensive accessibility overhaul targeting WCAG 2.2 Level AA conformance.

Keyboard & Focus

• Focused data points now expose role="img" and a contextual aria-label (series name, formatted value, category).
• Two-stage Escape: first press dismisses the tooltip, second press exits keyboard navigation (WCAG technique G194).
• Keyboard zoom/pan via + / - / 0 and Shift+Arrow as alternatives to drag gestures.
• Toolbar hit targets enlarged to 24×24 CSS px minimum.
• Tooltip is biased away from the focused data point during keyboard navigation.

ARIA & Semantics

• SVG <title> added alongside the existing <desc>; auto-generated aria-label includes series names when no description is supplied.
• Toolbar controls migrated from div[role=button] to native <button type="button"> (first rule of ARIA)
• Visually-hidden role="status" aria-live="polite" region announces zoom/pan/reset actions to screen readers.

Visual & Motion

• New --apexcharts-focus-color CSS custom property, themed for light (#008FFB), dark (#FFD500), and high-contrast (#FFFF00) modes — fixes SC 1.4.11 / 2.4.7.
• Utils.getContrastRatio() WCAG luminance helper added; high-contrast palette validated ≥ 3:1 against #fff in automated tests — fixes SC 1.4.3 / 1.4.11.
• @media (prefers-reduced-motion: reduce) shrinks all chart animations to near-zero duration — fixes SC 2.2.2.

Tests added: contrast.spec.js, keyboard-trap.spec.js (Playwright), keyboard-zoom.spec.js (Playwright), extended accessibility.spec.js and keyboard-navigation.spec.js.

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Improved Tooltip Hit Detection for Line / Area Charts

closestInMultiArray now projects the cursor onto each consecutive line segment rather than measuring distance to the nearest marker. This makes clicking between two markers on a line or area chart reliably pick the correct series — previously, whichever series's marker happened to be closest to the empty space was selected, often giving wrong results when many series clustered together. Bar, scatter, and other non-line chart types retain the existing marker-distance logic.

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Bug Fixes

• Tooltip — shared: false on line charts (#4983): closestInMultiArray was ignoring Y distance whenever allSeriesHasEqualX was true, causing a tie across all series so the lowest-index series always won. The X-only fast path is now restricted to shared: true; full Euclidean distance is used otherwise, so the actually-hovered series is correctly identified.

• Tooltip — shared: true markerClick : Line chart with shared: true now correctly reports the clicked series index in the markerClick event callback.

• Focus outline on mouse click: Removed the focus outline that incorrectly appeared around the entire chart container on mouse click; focus styles are now shown only during keyboard navigation.

Commits

• da55ac3 release: 5.11.0
• 66cd035 feat(a11y): WCAG 2.2 AA remediation
• 96b85f4 feat(tooltip): use segment distance for line/area click detection
• edbe1a9 fix: update tooltip tests continuing the fix for #3439
• eaaa752 fix(tooltip): add a sample to illustrate shared-tooltip-click
• ed453bb fix(tooltip): line chart shared:true now reports clicked series in markerClick
• 787f3d0 Merge branch 'main' of https://github.com/apexcharts/apexcharts.js
• bac5485 Fixes #4983; show hovered series in line chart with shared:false
• cbc82af Merge pull request #5208 from apexcharts/dependabot/npm_and_yarn/follow-redir...
• 87ebedb Merge pull request #5210 from apexcharts/dependabot/npm_and_yarn/postcss-8.5.13
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