* show outdated extension for Check for Extension updates action

* include CheckForUpdates also

* avoid flicker perspection; show no. of outdated extensions

* remove the temp code for local test

* add prompt to update all extensions

* Remove option to update all and refactor

* Dont move focus, let the user do it if they choose to do so

onConfigUpdate is fired for every extension settings before the groups are in the model

* Create new search input model for each instance of a settings editor

* Move increment to render stage

fixes #55886

#56137

fixes #56104