Update bootstrap to the latest version 🚀

[greenkeeper]

Version 4.0.0 of bootstrap was just published.

Dependency	bootstrap
Current Version	3.3.7
Type	devDependency

The version 4.0.0 is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

It might be worth looking into these changes and trying to get this project onto the latest version of bootstrap.

If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.

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Release Notes

v4.0.0

Our first stable v4 release! 🎉

Highlights:

• Brand new examples and overhauls for existing ones.
• Additional border utilities have been added and the default border-color for them darkened from $gray-200 to $gray-300.
• Pagination focus styles now match button and input focus state.
• Added responsive .order-0 classes to reset column order.
• Improved examples of form validation documentation by adding tooltip examples and more.
• New documentation added for using our CSS variables to the Theming page.
• Improved consistent across browsers when printing.
• Sass map extends and docs
• New and improved print display utilities

Project board

For more details, visit #25098.

Commits

The new version differs by 5969 commits ahead by 5969, behind by 321.

• 8a628b9 Remove -Pre from Nuget install info since we're stable now /cc @supergibbs
• 572d00a Bump version to 4.0.0
• bffa438 Update progress.md (#25355)
• 45d2f2e Restore sidebar nav link to Approach page
• 20a9c7f dist
• 91d5846 Improve examples' screenshots compression.
• 6902219 Consistently sized 960x600 wide images.
• b00bbf0 Only 2-col on sm+
• 9b0fcbf Prevent print utils from overriding all other display utils (#25269)
• a0936c3 Outline button hover color (#25339)
• b1a7548 Use .list-group-item-action for list group item variant (#25338)
• 4c96f58 Fix input height border (#25331)
• 18f6915 dist
• f4132db Add order-last grid class (#24915)
• a531b46 Using the expected variable to set the custom select height. (#25169)

There are 250 commits in total.

See the full diff

FAQ and help

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Your Greenkeeper bot 🌴

[codecov]

Codecov Report

Merging #3494 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #3494   +/-   ##
============================================
  Coverage        72.34%   72.34%           
============================================
  Files              249      249           
  Lines             8056     8056           
  Branches          1528     1528           
============================================
  Hits              5828     5828           
  Misses            1806     1806           
  Partials           422      422

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