Protected constructors

[Jym77]

Part of #1733

• Make constructors that are not part of a Singleton pattern protected instead of private. This let consumers extend the class if they want.
• Fix a missing singleton pattern.

[changeset-bot]

🦋 Changeset detected

Latest commit: 21b0c85

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 78 packages

Name	Type
@siteimprove/alfa-compatibility	Patch
@siteimprove/alfa-css-feature	Patch
@siteimprove/alfa-performance	Patch
@siteimprove/alfa-trampoline	Patch
@siteimprove/alfa-rectangle	Patch
@siteimprove/alfa-selective	Patch
@siteimprove/alfa-toolchain	Patch
@siteimprove/alfa-branched	Patch
@siteimprove/alfa-selector	Patch
@siteimprove/alfa-sequence	Patch
@siteimprove/alfa-cascade	Patch
@siteimprove/alfa-emitter	Patch
@siteimprove/alfa-network	Patch
@siteimprove/alfa-affine	Patch
@siteimprove/alfa-device	Patch
@siteimprove/alfa-either	Patch
@siteimprove/alfa-future	Patch
@siteimprove/alfa-option	Patch
@siteimprove/alfa-record	Patch
@siteimprove/alfa-result	Patch
@siteimprove/alfa-cache	Patch
@siteimprove/alfa-graph	Patch
@siteimprove/alfa-rules	Patch
@siteimprove/alfa-slice	Patch
@siteimprove/alfa-style	Patch
@siteimprove/alfa-table	Patch
@siteimprove/alfa-xpath	Patch
@siteimprove/alfa-aria	Patch
@siteimprove/alfa-http	Patch
@siteimprove/alfa-iana	Patch
@siteimprove/alfa-lazy	Patch
@siteimprove/alfa-list	Patch
@siteimprove/alfa-time	Patch
@siteimprove/alfa-wcag	Patch
@siteimprove/alfa-act	Patch
@siteimprove/alfa-css	Patch
@siteimprove/alfa-dom	Patch
@siteimprove/alfa-fnv	Patch
@siteimprove/alfa-map	Patch
@siteimprove/alfa-set	Patch
@siteimprove/alfa-url	Patch
@siteimprove/alfa-web	Patch
@siteimprove/alfa-applicative	Patch
@siteimprove/alfa-array	Patch
@siteimprove/alfa-bits	Patch
@siteimprove/alfa-callback	Patch
@siteimprove/alfa-clone	Patch
@siteimprove/alfa-collection	Patch
@siteimprove/alfa-comparable	Patch
@siteimprove/alfa-continuation	Patch
@siteimprove/alfa-earl	Patch
@siteimprove/alfa-encoding	Patch
@siteimprove/alfa-equatable	Patch
@siteimprove/alfa-flags	Patch
@siteimprove/alfa-foldable	Patch
@siteimprove/alfa-functor	Patch
@siteimprove/alfa-generator	Patch
@siteimprove/alfa-hash	Patch
@siteimprove/alfa-iterable	Patch
@siteimprove/alfa-json-ld	Patch
@siteimprove/alfa-json	Patch
@siteimprove/alfa-mapper	Patch
@siteimprove/alfa-math	Patch
@siteimprove/alfa-monad	Patch
@siteimprove/alfa-parser	Patch
@siteimprove/alfa-predicate	Patch
@siteimprove/alfa-promise	Patch
@siteimprove/alfa-reducer	Patch
@siteimprove/alfa-refinement	Patch
@siteimprove/alfa-sarif	Patch
@siteimprove/alfa-string	Patch
@siteimprove/alfa-test-deprecated	Patch
@siteimprove/alfa-test	Patch
@siteimprove/alfa-thenable	Patch
@siteimprove/alfa-thunk	Patch
@siteimprove/alfa-tree	Patch
@siteimprove/alfa-trilean	Patch
@siteimprove/alfa-tuple	Patch

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[Jym77]

!pr extract