add panel modes: swap, move to left, move to right

app/components/commander/action_modes.hbs

 <div class="d-flex">
+
   <Commander::ViewMode
     @onViewModeChange={{@onViewModeChange}} />
+
+  <PanelModes
+    @dualPanelMode={{@dualPanelMode}}
+    @hint={{@hint}} />
+
   <div class="panel-mode">
     <button type="button" class="btn btn-light mx-1"
       {{on "click" (fn @onPanelToggle @hint) }}>
@@ -11,4 +17,5 @@
       {{/if}}
     </button>
   </div>
+
 </div>

app/components/panel_modes.hbs

+{{#if @dualPanelMode}}
+  {{#if (is_equal @hint "left")}}
+    <button type="button"
+      class="btn btn-light mx-1">
+        <i class="bi-arrow-bar-right"></i>
+    </button>
+  {{else}}
+    <button type="button"
+      class="btn btn-light mx-1">
+        <i class="bi-arrow-bar-left"></i>
+    </button>
+  {{/if}}
+
+  <button type="button"
+    class="btn btn-light mx-1">
+      <i class="bi-arrow-left-right"></i>
+  </button>
+{{/if}}

app/components/viewer/action_modes.hbs

 <div class="d-flex">
+
+  <PanelModes
+    @dualPanelMode={{@dualPanelMode}}
+    @hint={{@hint}} />
+
   <div class="panel-mode">
     <button type="button" class="btn btn-light mx-1"
       {{on "click" (fn @onPanelToggle @hint)}}>

app/controllers/authenticated/document.js

@@ -36,4 +36,19 @@ export default class DocumentController extends DualPanelBaseController {
     }
   }
 
+  @action
+  onSwapPanels() {
+    console.log(`onSwapPanels`);
+  }
+
+  @action
+  onLeftDuplicate() {
+    console.log(`onLeftDuplicate`);
+  }
+
+  @action
+  onRightDuplicate() {
+    console.log(`onRightDuplicate`);
+  }
+
 }

app/controllers/authenticated/nodes.js

@@ -34,4 +34,19 @@ export default class NodesController extends DualPanelBaseController {
       this.extra_type = 'folder';
     }
   }
+
+  @action
+  onSwapPanels() {
+    console.log(`onSwapPanels`);
+  }
+
+  @action
+  onLeftDuplicate() {
+    console.log(`onLeftDuplicate`);
+  }
+
+  @action
+  onRightDuplicate() {
+    console.log(`onRightDuplicate`);
+  }
 }

app/styles/context_menu.scss

@@ -20,5 +20,3 @@
   }
 
 }
-
-