case/let and some cleanup of the cst

queries/highlights.scm

@@ -1,19 +1,19 @@
 [
-  "let"  
-  ; "in" 
-  "where" 
-  ; "case"  "of"  
-  "data"  
+  "let"
+  ; "in"
+  "where"
+  "case"  "of"
+  "data"
   ;"U"
-  "do" 
-  "ptype"  "pfunc"  
-  "module" 
-  ; "infixl"  "infixr"  "infix" 
-  "∀"  ; "forall"
-  "import" 
-  "uses"  "derive" 
+  "do"
+  "ptype"  "pfunc"
+  "module"
+  ; "infixl"  "infixr"  "infix"
+  "∀"  "forall"
+  "import"
+  "uses"  "derive"
   "class"  "instance"  "record" "constructor"
-  "if"  "then"  "else" 
+  "if"  "then"  "else"
   "|" "<-" "=>" "$" ":"
 ] @keyword
 (comment) @comment

queries/injections.scm

@@ -0,0 +1,3 @@
+
+(jsLitString (jsStringFragment) @injection.content
+  (#set! injection.language "javascript"))