fix: componentDidLoad setTimeouts not cleaned up #30860
Description
After checking the code of the ion-searchbar i saw that in multiple components timeouts that are defined in componentDidLoad are not cleared when disconnected.
In some circumstances this can lead to unwanted side effects or memory not cleaned up correctly.
Especially the label and searchbar components have in some situations "long" timeouts in ms.
This issue was created because it is needed for the PR: #30851