Implement `direction` property (#906)
1<test name="bevy_issue_7976_reduced__content_box_ltr" use-rounding="true">
2 <viewport width="max-content" height="max-content"/>
3 <input>
4 <div box-sizing="content-box" direction="ltr" align-content="start" height="200px">
5 <div box-sizing="content-box" direction="ltr" width="40px"/>
6 </div>
7 </input>
8 <expectations>
9 <node x="0" y="0" width="40" height="200">
10 <node x="0" y="0" width="40" height="200"/>
11 </node>
12 </expectations>
13</test>