Desktop client ui tasks

[filipslezaklab]

Additional requested changes to client UI:

• Add snackbars ( port from core )
• Add Menu component ( port from core )
• Fix hover in menu
• Icon size on mac is too big
• Fixed container for the traffic element
• Fix the padding
• Checkbox default state (TBD)
• Sizes of the elements for connected and disconected states are different (should be the same)
• Location title section is "broken"
• Tray-window height need to be increased not to "cut" button and avoid micro-scroll
• Support icon size is bigger than other icons in left nav
• Default white color (opacity level) for the "add" section elements is incorrect
• Connect menu
• For 2 locations in the list the second location's actionable elements shouldn't be cut (i assume the tray window height should be increased a little bit)