Display pressure status inside mission in frontend

[phhuseboe]

Describe the new feature you would like to see
The pressure status should be displayed on the mission page for that robot.

• If there is no pressure associated with the robot nothing should be displayed
• A suggestion is to place the pressure beside the battery status as it is now
• If the mission has finished there is no reason to display the pressure and it should be hidden
• The display should change color depending on the limits for pressure for that robot (see Make flotilla listen to pressure updates #673)

The design should be verified with @mariannewiggen

Describe the solution you'd like

How will this feature affect the current Threat Model?
N/A

[aeshub]

This relies on pressure information made available through the backend by #673

[Eddasol]

• Display the pressure in the mission page: Solved by Add pressure level to mission page #690
• Outstanding scope of integrating warnings: Continued as issue Change pressure display in mission page depending on pressure status #693