Make file renaming dialog resizable

[ryan-carpenter]

Is your suggestion for improvement related to a problem? Please describe. The text field for renaming files is usually too small to show the whole file name. This makes it hard to edit the file name, because the dialog is not resizable. Screen scaling does not matter for 38x40x2160 at 150% or 200% (default font set to 11 pts).

Describe the solution you'd like Make the file-rename dialog wider and/or resizable to enable easier viewing and editing.

Additional context