feat: add template info types

Author: yeonjuan

src/types/template.ts

@@ -3,6 +3,13 @@ import { Range } from "./range";
 export type TemplateInfo =
   | Range
   | {
+      type?:
+        | "inline"
+        | "blockOpen"
+        | "blockClose"
+        | "conditionalBlockOpen"
+        | "conditionalBlockClose"
+        | "alternativeBlockOpen";
       open: Range;
       close: Range;
     };