Add left/right to editor & README.

src/editor.ts

@@ -262,6 +262,14 @@ export class FrigateCardEditor extends LitElement implements LovelaceCardEditor
       value: 'below',
       label: localize('config.event_viewer.controls.thumbnails.modes.below'),
     },
+    {
+      value: 'left',
+      label: localize('config.event_viewer.controls.thumbnails.modes.left'),
+    },
+    {
+      value: 'right',
+      label: localize('config.event_viewer.controls.thumbnails.modes.right'),
+    },
   ];
 
   protected _thumbnailMedias = [

src/localize/languages/en.json

@@ -80,6 +80,8 @@
           "modes": {
             "below": "Thumbnails below the media",
             "above": "Thumbnails above the media",
+            "left": "Thumbnails in a drawer left of the media",
+            "right": "Thumbnails in a drawer right of the media",
             "none": "No thumbnails"
           }
         },