Rework outbound links and file downloads

[RobertJoonas]

Changes

• Refactoring
  • Handlebars helper function to inject code for multiple script extensions at the same time
  • Extracted several functions and improved readability
• Made the script not prevent default if it has been prevented by an external script (fixes https://github.com/plausible/analytics/issues/1941)
• Used callbacks instead of waiting 150ms for the event request to be sent
• Disallowed sending two events at the same time by only having one click handler
  • If using script.file-downloads.outbound-links.js and clicking an outbound download link, only outbound link click event is sent

Tests

• [x] Automated tests have been added

Changelog

• [x] Entry has been added to changelog

Documentation

• [ ] Docs have been updated

Dark mode

• [x] This PR does not change the UI

[bundlemon[bot]]

BundleMon

Unchanged files (7)

Status	Path	Size	Limits
:white_check_mark:	static/css/app.css	515.19KB	-
:white_check_mark:	static/js/dashboard.js	295.62KB	-
:white_check_mark:	static/js/app.js	12.13KB	-
:white_check_mark:	static/js/embed.host.js	5.58KB	-
:white_check_mark:	static/js/embed.content.js	5.06KB	-
:white_check_mark:	tracker/js/plausible.js	748B	-
:white_check_mark:	static/js/applyTheme.js	314B	-

No change in files bundle size

Final result: :white_check_mark:

View report in BundleMon website ➡️

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Current branch size history | Target branch size history