Align node/edge style dialog wording with the settings screen

[kmcginnes]

The node/edge style dialogs use wording that doesn't match the Styles settings screen. Adopt "your styles" and "shared styles" consistently. "Reset to Default" in particular reads poorly. The dialog title and description could also use refinement.

Related Issues

• Part of Shared user styles #1896

Important

Internal only — this issue is maintained by the core team and is not accepting external contributions.