Consider re-implementing removed test from UnitTests/TestWebUI.cs #23
Description
As part of upgrading from .net framework 4 to .net6 some tests were not re-implemented. This should be considered.
Ref changes here: 81bde2f#diff-6e2b8ab58f42ad45a4618713c5901639fad77bc529487d073848c4bea2062264