Indentation of multiline maps/keyword lists/structs

If i try to indent a multiline map the plugin will indent the map incorrectly. For example, the auto-indented map will look like this.
```
%{foo: "bar",
baz: "buzz"}
```
Where it should be
```
%{foo: "bar",
baz: "buzz"}
```
of note, if you try to make a map with newlines (i.e. javascript style), it auto-indents fine.
```
%{
foo: "bar",
baz: "buzz
}
```
however, this is not usually how elixir code is formatted. The same is true for keyword lists as well as structs.