add tree-sitter sources to languages.toml

Here we add syntax to the languages.toml languge

    [[grammar]]
    name = "<name>"
    source = { .. }

Which can be used to specify a tree-sitter grammar separately of
the language that defines it, and we make this distinction for
two reasons:

* In later commits, we will separate this code from helix-core
  and bring it to a new helix-loader crate. Using separate schemas
  for language and grammar configurations allows for a nice divide
  between the types needed to be declared in helix-loader and in
  helix-core/syntax

* Two different languages may use the same grammar. This is currently
  the case with llvm-mir-yaml and yaml. We could accomplish a config
  that works for this with just `[[languages]]`, but it gets a bit
  dicey with languages depending on one another. If you enable
  llvm-mir-yaml and disable yaml, does helix still need to fetch and
  build tree-sitter-yaml? It could be a matter of interpretation.

1 files changed, 1 insertions, 0 deletions

diff --git a/helix-core/src/indent.rs b/helix-core/src/indent.rs
index 9a329d95..83b2be94 100644
--- a/helix-core/src/indent.rs
+++ b/helix-core/src/indent.rs
@@ -444,6 +444,7 @@ where
                 debugger: None,
                 auto_pairs: None,
             }],
+            grammar: vec![],
         });
 
         // set runtime path so we can find the queries