Compat breaking mode

[orenelbaum]

I'm suggesting a different mode for Civet that doesn't maintain compat with ES/TS or CS as an explicit goal and would prioritize decisions that make the language better in other ways.
The main feature I'm interested in is strict indentation, which I think that other than enforcing more structure would also allow for more possibilities and just overall nicer syntax
For example:

x :=
  y := 1
  y + 1
  
 if (
  a b
  && c
)
  x

Other than that there are other a lot of small things like == => ===, | => ||, also maybe enabling by default the code first JSX mode which is something in the direction of

<div>
  if (x) 'hello'
  else 'goodbye'

I'm sure that a lot of other things will come up.