feat: autocomplete with single " (#502)

- [x] fix policy completions – seem to be broken given `select | from public.users "u"` or `select | from public.users u`… - autocomplete with single `"` -> results in `"u"."email"` or `"email"` - autocomplete within double `""` -> results in `"u"."email"` or `"email"` - recognize aliases regardless of whether they are quoted or not: - `"u".|` and `u.|` will both suggest `email` - `"u"."|` and `u."|` and `"u"."|"` and `u."|"` will all suggest `"email"` - *This does not yet work for tables -> separate PR* - existing behavior without quotes is unaffected

Author: juleswritescode

crates/pgt_completions/src/builder.rs

@@ -6,6 +6,7 @@ use crate::{
 
 use pgt_treesitter::TreesitterContext;
 
+#[derive(Debug)]
 pub(crate) struct PossibleCompletionItem<'a> {
  pub label: String,
  pub description: String,