#21553: Palette context menu placement and dismissal when open not vi…

[krasko78]

Resolves: #21553

• [X ] I signed the CLA
• The title of the PR describes the problem it addresses
• Each commit's message describes its purpose and effects, and references the issue it resolves
• If changes are extensive, there is a sequence of easily reviewable commits
• The code in the PR follows the coding rules
• There are no unnecessary changes
• The code compiles and runs on my machine, preferably after each commit individually
• I created a unit test or vtest to verify the changes I made (if applicable)

[zacjansheski]

Tested on MacOS 14, Windows 11, Ubuntu 22.04.3. Approved
#21553 FIXED