Remove XIB-based 1x1 form display and convert to programmatic UI

Terms

• I have searched open and closed issues
• I agree to follow Scribe-iOS' Code of Conduct

Issue

Currently the "not in Wikidata" info display (the formKeySingle/formLblSingle 1x1 form view) is the only remaining part of the old XIB-based form UI. All other conjugations and declensions have been migrated to dynamic, programmatic views. This issue is to clean up the last remaining piece.

What needs to be done:

• Identify all XIB elements and outlets still being used by setInformationState() in KeyboardViewController.swift
• Replace them with programmatic UIKit equivalents
• Remove the now-unused XIB elements, outlets, and any related helper functions

This issue is discussed here.

Related PR #590

Happy to work or contribute on this issue. 😊