SimpleFindWidget Add next,previous,history: Fixes #29708 #29661

[cleidigh]

@rebornix
@Tyriar

• Of course the last five percent was all the work
• The need for a new context for FindInput Focused was somewhat messy
• Had to touch more files than expected, was necessary as there are four clients
• Re-FactoringTheFindWidget for common use everywhere will take quite a bit of work
  since it's so intertwined with the editor
• Hopefully this is useful until we re- factor that

Fixes #29708 #29661 also services the modified simpleFindWidget to all users

[mention-bot]

@cleidigh, thanks for your PR! By analyzing the history of the files in this pull request, we identified @jrieken and @joaomoreno to be potential reviewers.

[mjbvz]

@cleidigh Looks like something went wrong with the commit or PR. I only see whitespace diffs. Can you please try resubmitting the changes

[cleidigh]

@mjbvz
@rebornix
Sorry I seem to be in some kind of merge hell ... git is not cooperating.
May have to redo this PR.

[rebornix]

@cleidigh maybe some rebasing and force push can help.

[cleidigh]

Closing and replacing with PR #32113