Apply code formatting across all julia lectures

[jlperla]

After, or during, #250 we can apply the formatting globally. A few things:

• We will want to figure out what the right column length is for formatting. The goal is that on the HTML output it wraps at the right place
• If there are style things that really don't work well for SCIML for the html we can make changes to the setup.
• I think that we will want to go through and change the variables from unicode where possible. I added in a starting point for the transformation in the https://github.com/QuantEcon/lecture-julia.myst/blob/main/format_myst.jl#L57-L58 but we can add in a bunch more.
  • We dont' want to automatically rename variables in the github action, so this is somethign that should be done carefully.
  • The other issue is that there will be many places where the unicode variables are used by underlying pacakages instead of our own variable names, so we will need to apply this and check the results carefully.
• We can run https://github.com/QuantEcon/lecture-julia.myst/blob/main/format_all_myst.sh but should be very careful to check all of the results. Variable renaming should be manual.