Improve line length for the DSL output

[iamrecursion]

Currently we only break lines in the DSL syntax—that the extractor outputs—based on the end of a statement or other known markers such as lines in a block. This can lead to some extremely long lines, which we should do better on.

• Look into what kind of heuristics we can use for breaking long lines (potentially with a try_state in the writer that can be committed or rejected if it gets too long).
• Improve the code output based on this.