fix(everything): replace Greek 'μ' with micro 'µ'

[ddcc4]

Overview

There are two different characters that look like the "mu" symbol:

• µ (U+00B5 MICRO SIGN)
• μ (U+03BC GREEK SMALL LETTER MU)

In some fonts they look different; but in many fonts they look the same.

The problem is that in the Public Sans font that we use for Protocol Designer, U+03BC GREEK SMALL LETTER MU is not available at all, because the font only supports Latin characters plus some scientific symbols. So whenever we use U+03BC GREEK SMALL LETTER MU in text, the browser has to render it with a fallback font, which can look ugly.

For consistency, we should just use U+00B5 MICRO SIGN whenever we have a µ that means 1/1,000,000, and only use U+03BC GREEK SMALL LETTER MU when we're writing Greek text (like in a Greek-language user manual).

Test Plan and Hands on Testing

I did a global search and replace on all the text in our codebase. I'm relying on the CI tests to catch any issues.

Risk assessment

This could potentially break external dependencies that expect the Greek-text mu.

[jwwojak]

I think microliter should be abbreviated as "µL" not "µl" (use capital L). I know our API docs are inconsistent here. All our text and online manuals use µL.

[ddcc4]

I think microliter should be abbreviated as "µL" not "µl" (use capital L). I know our API docs are inconsistent here. All our text and online manuals use µL.

Agreed! µL is the correct SI abbreviation. But I want PR's to only do one thing at a time, so editorial changes like µl -> µL should go into a separate PR.

[mjhuff]

Apologies for the failing components CI, I'll put a fix up!

EDIT: Fix merged into edge.