feat: add more support for glimmer (#4935)

* add indents, locals and folds

queries/glimmer/folds.scm

@@ -0,0 +1,4 @@
+[
+ (element_node (element_node_start))
+ (block_statement)
+] @fold

queries/glimmer/indents.scm

@@ -0,0 +1,22 @@
+[
+  (element_node (element_node_start))
+  (element_node_void)
+  (block_statement (block_statement_start))
+  (mustache_statement)
+] @indent.begin
+
+(element_node (element_node_end  [">"] @indent.end))
+(element_node_void "/>" @indent.end)
+[
+ ">"
+ "/>"
+ "</"
+ "{{/"
+ "}}"
+] @indent.branch
+
+(mustache_statement
+  (helper_invocation helper: (identifier) @_identifier (#eq? @_identifier "else"))
+  ) @indent.branch
+(mustache_statement ((identifier) @_identifier (#eq? @_identifier "else"))) @indent.branch
+(comment_statement) @indent.ignore

queries/glimmer/locals.scm

@@ -0,0 +1,7 @@
+[
+ (element_node)
+ (block_statement)
+] @scope
+
+(identifier) @reference
+(block_params (identifier) @definition.var)