fix(locale-search): fix class fields error for inputTimeout

[m4olivei]

Related Ticket(s)

Closes #12087 (partially, see also #12088)

Description

Fixes the following error reported when using react wrapped components:

Error: The following properties on element c4d-locale-search will not trigger updates as expected because they are set using class fields: inputTimeout. Native class fields and some compiled output will overwrite accessors used for detecting changes. See https://lit.dev/msg/class-field-shadowing for more information.

Changelog

Changed

• Declare inputTimeout class property of ThrottledInputMixin as abstract, relying on children to implement.

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[github-actions]

Hey there! This issue/pull request was referenced in recently released v2.16.0.