SciMLStyle format for short begin end block 

@ChrisRackauckas could the rule that sends
```julia
rn = @reaction_network begin
     k/$V, A + B --> C
end k
```
to
```julia
rn = @reaction_network begin k / $V, A + B --> C end k
```
be changed to keep the former? I'm having to disable the formatter in Catalyst in a bunch of places to avoid such changes, which decrease readability.