fix bindon highlighting

Author: princemaple

NgxHTML.sublime-syntax

@@ -539,10 +539,8 @@ contexts:
         3: punctuation.section.bindon.end.html
         4: punctuation.separator.key-value.html
       push:
-        - include: string-double-quoted
-        - include: string-single-quoted
-        - match: ''
-          pop: true
+        - tag-event-attribute-meta
+        - tag-event-attribute-equals
 
   tag-stuff:
     - include: tag-attributes