Unnecessary resize-ability in add segment window and wrong buttons

[blue-devil]

Version and Platform (required):

• Binary Ninja Version: 3.4.4170-dev
• OS: Windows 10, x64

Bug Description:
Please see the screenshot that I have recorded.

• Add segment window can be resized downwards but it is unnecessary.
• Buttons Add and Cancel is not proper qt buttons I think?

Steps To Reproduce:

1.Open BN and load and executable
2. Click Memory Map
3. Right click on Memory Map windows
4. Click on Add Segment in the right-click context menu
5. Resize the Add segment window

Expected Behavior:

• I expect normal qt buttons like in the assembly window or in the Help > About window
• I expect add segment window not to resize downward. I think Add segment window should be fixed in size.
• Read, write, execute checkboxes should be fixed

Screenshots:

[fuzyll]

This should be fixed in builds >= 3.5.4299, please let me know if there's anything else you see that's wrong.

[blue-devil]

I have checked the latest dev build and it is fixed, thank you.