fix: pretty sql parsing error messages

Summary

• fix: pretty sql parsing error messages

Previously when running pico.sql [[ create table foo ]] we would get this output:

---
- null
- "sbroad: rule parsing error:  --> 1:9\n  |\n1 |  create table foo \n  |  ^---\n
  \ |\n  = expected Unique"
...

But now the output will be:

---
- null
- |+
  sbroad: rule parsing error:  --> 1:9
    |
  1 |  create table foo
    |         ^---
    |
    = expected Unique

...

---

• Close #...
• Cherry-pick to: none
• Docs follow-up: not necessary