Bump reveal.js from 3.9.2 to 4.1.0

[dependabot-preview]

Bumps reveal.js from 3.9.2 to 4.1.0.

Release notes

Sourced from reveal.js's releases.

4.1.0

Changes

• New: Add data-visibility="hidden" to a slide to hide it from view. Docs & examples
• New: Add the r-fit-text class to make a text node grow to be as large as possible without overflowing the slide. Docs & examples
• The configured slide width/height is now exposed as CSS variables (--slide-width/--slide-height).
• The shuffle config option now shuffles vertical slides as well.
• All themes now invert the text color based on the current slide background color.
• Include /css and /js in npm package.

Fixes

• Don't append #/ to the URL on first slide.
• Don't fill the progress bar when there's only one slide in a deck
• Correct slide count when using data-visibility="uncounted" (#2675)

4.0.2

Changes

• Enables caching for JavaScript builds, making subsequent builds ~50% faster.
• In auto-sliding presentations, the data-autoslide attribute now takes precedence over automatic detection of <video> durations.
• Remove overzealous reset styles when printing to PDF.
• Reveal.configure and Reveal.isReady are now available in the pre-initialized reveal.js API, to match v3.x behavior.
• Switches to serving demo presentation assets from a CDN.

Bug fixes

• Fixes polyfills and adds IE 11 support.
• Fixes the progress bar direction in right-to-left mode.

4.0.1

Bug fixes

• Fixed issues when printing speaker notes to PDF (#2671 by @s-l-lee)
• Fixed incorrect auto-animations when there are multiple auto-animated presentations on the same page

4.0.0

Breaking Changes 🚨

This release includes a small number of breaking changes. Please read the Upgrade Instructions if you want to migrate an existing presentation.

Highlights

• New website, docs and logo! https://revealjs.com/ 🚀
• Auto-Animate lets you create complex animations by automatically transitioning between matched elements across slides. Duration, delay and easing can be set on a per-slide or per-element basis.
• We now support multiple presentations on the same page.
  • This also introduces a new embedded config option, which allows presentations to reside within a portion of a page. Previously reveal.js always covered 100% of the page width and height.
  • The new keyboardCondition: 'focused' config option lets presentations capture keyboard events only when they're focused by the viewer.
• The reveal.js core and built-in plugins have been rewritten as ES modules. This makes the project easier to maintain and makes reveal.js itself easier to include in a bundle. Two bundles are provided:
  • dist/reveal.js uses UMD and has broad cross browser support (ES5).
  • dist/reveal.esm.js is an ES module. More info
• Code highlights are now automatically scrolled into view and it looks soooo good. You've got to try it out.

Changes

• The Reveal.initialize method now returns a promise that resolves once reveal.js is ready and all plugins have finished initializing.
• Switches build systems from to gulp, using rollup for bundling.
• Moves all compiled CSS (reveal.css, reset.css and themes) from css/ to dist/. See Upgrade Instructions.

Commits

• 0582f57 add fit-text to demo
• ffadcc8 v4.1.0
• e09437f escape HTML entities in code parsed from markdown, fixes #2744
• 676936e revert debug change to index.html
• 4d62dcc Merge branch 'master' of github.com:hakimel/reveal.js into dev
• 17bfa62 Merge pull request #2746 from ebriand/patch-1
• 5f7c945 Merge pull request #2752 from michaelmior/css-paths
• b13c7b4 Merge pull request #2767 from rschmehl/patch-1
• 5676ef7 Merge pull request #2771 from timgates42/bugfix_typo_transition
• 2c121d2 docs: Fix simple typo, transiition -> transition
• Additional commits viewable in compare view

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Superseded by #812.