[JavaScript] Tweak enter key binding

This commit changes `enter` key binding to "Add Line in Braces" macro,
as it indents line between backticks using indentation rules instead of
forcing it to be indented via `\t`.

This works also, if indentation rules decide not to indent backticked contents.

JavaScript/Default.sublime-keymap

@@ -53,7 +53,7 @@
     },
 
     // Add indented line in square brackets
-    { "keys": ["enter"], "command": "insert_snippet", "args": {"contents": "\n\t$0\n"}, "context":
+    { "keys": ["enter"], "command": "run_macro_file", "args": {"file": "res://Packages/Default/Add Line in Braces.sublime-macro"}, "context":
         [
             { "key": "setting.auto_indent" },
             { "key": "selection_empty", "match_all": true },
@@ -62,7 +62,7 @@
             { "key": "following_text", "operator": "regex_contains", "operand": "^\\]", "match_all": true }
         ]
     },
-    { "keys": ["keypad_enter"], "command": "insert_snippet", "args": {"contents": "\n\t$0\n"}, "context":
+    { "keys": ["enter"], "command": "run_macro_file", "args": {"file": "res://Packages/Default/Add Line in Braces.sublime-macro"}, "context":
         [
             { "key": "setting.auto_indent" },
             { "key": "selection_empty", "match_all": true },