fix: compatibility with swup 4.6.0

[hirasso]

Description

• Fix caching of foreign persisted fragments with swup 4.6.0.
• Fix types for matchPath functions

Drive-By

• Formatted also the tests, fixtures and readme.md

Checks

• The PR is submitted to the master branch
• The code was linted before pushing (npm run lint)
• All tests are passing (npm run test)
• New or updated tests are included

[github-actions]

Playwright test results

 12 passed

Details

 12 tests across 1 suite
 28.5 seconds
 e14793a

[hirasso]

Regarding my comment from above: I've removed the backwards-compatibility code and bumped the swup peer dependency to 4.6.0. I guess that should do it, right? I hope I'll ever wrap my head around these kinds of things...

[daun]

@hirasso I think it needs both the peer dependency as well as the requires key in the plugin itself. That's how we did that in the body class and head plugins, for example here.

[hirasso]

Aaah right, the requires property! Thanks!

[daun]

With just the peer dependency, it could still accept the wrong combination depending on how and with which npm version a project is configured.