[Studio] - highlighting open section

[heigpa]

Would it make sense to highlight the open section?

[idaiv]

yes, we have a token for that already that we can use: colorPrimaryBorder

Token can be seen applied here: https://www.figma.com/design/pg65AmcoU5iVtQeroHK4iF/Full-Screens?node-id=15907-119478&t=Qq3ot4g41Cooff1Y-4

[idaiv]

Additional small improvements will be covered along with this ticket:

• Advanced icon changed
• Font sizes aligned

[idaiv]

covered by #685