quick fixes from user feedback round 2

[meganrm]

Use Case

• change text about "purple arrow"
• remove microseconds
• highlight substrate on first instance
• fix dot key
• filter out unique measured values
• change wording "bound complexes"
• change hover text for bonus material
• wording for example trajectory: "this is a pre-computed simulation"
• check if variable had been used earlier
• change unit text to #D3D3D3 (too low contrast now) in Concentrations over time plot
• This is my fault: "Play, scroll or click + drag to interact" outline makes it look like a button. Lame. Can we remove the border and increase to font-weight:600?
• Add button animation for "Lab view" switch (3/10)...we might want to consider animating the switch back and then eventual "restart" button.

[meganrm]

@lynwilhelm which "unit text" are you referring to?

[lynwilhelm]

@meganrm