[index patterns] Index pattern management / field editor / creation flyout - index patterns => data views - user facing copy

[mattkime]

Update user facing copy in index pattern management, index pattern field editor, and index pattern editor (creation flyout) to read 'data view' instead of 'index pattern' where appropriate.

Addressed by

• [data plugin] index pattern => data view text changes #109576
• [index pattern management] index pattern => data view for user facing content #109577
• [index pattern editor] index pattern to data view for user facing content #109578
• [index pattern field editor] index patterns => data views for user facing content #109704

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServices)