Embedding button to lower left, cell selection (#1658)

* embedding

* menu bottom left

* button

* change gutters to support lower toolbar

* fix scatterplot layout

* fix tests to match new layout

* fix smoke tests to match new layout

* better sentence, dataset.nObs to top

* scatterplot position

Co-authored-by: bkmartinjr <bruce@chanzuckerberg.com>

client/src/components/menubar/index.js

@@ -6,7 +6,6 @@ import * as globals from "../../globals";
 import styles from "./menubar.css";
 import actions from "../../actions";
 import Clip from "./clip";
-import Embedding from "./embedding";
 import InformationMenu from "./infoMenu";
 import Subset from "./subset";
 import UndoRedoReset from "./undoRedo";
@@ -264,7 +263,6 @@ class MenuBar extends React.PureComponent {
             this.handleClipPercentileMinValueChange
           }
         />
-        <Embedding />
         <Tooltip
           content="When a category is colored by, show labels on the graph"
           position="bottom"