Wrong size of Change Content Type? Confirm popup

[BrainforgeUK]

Off-shelf Wordpress plugin installation on 5 July 2023.
Go into content editor, change content type as in following screenshots.
If final screenshot confirm popup is not high enough.
Solution : change application.css as follows... (where is that to submit a pull request?)
.h5peditor {
min-height: 300px;
font-size: 16px;
}