LT-288: Fixing viewer crash for non associated studies

Packages/viewerbase/client/components/viewer/toolbarSectionButton/toolbarSectionButton.html

@@ -1,22 +1,22 @@
 <template name="toolbarSectionButton">
-    {{ #if this.buttonTemplateName }}
-    {{> UI.dynamic template=this.buttonTemplateName data=this }}
-    {{ else }}
-    <div id="{{this.id}}"
-         class="toolbarSectionButton rp-x-1 {{this.classes}} {{activeClass}}"
-         title="{{this.title}}">
-        <div class="svgContainer">
-            {{ #if this.svgLink }}
-            <svg>
-                <use xlink:href={{this.svgLink}}></use>
-            </svg>
-            {{ else }}
-            <i class={{iconClasses}}></i>
-            {{ /if }}
+    {{#if this.buttonTemplateName}}
+        {{>UI.dynamic template=this.buttonTemplateName data=this}}
+    {{else}}
+        <div id="{{this.id}}"
+            class="toolbarSectionButton rp-x-1 {{this.classes}} {{activeClass}} {{#if this.disabled}}disabled{{/if}}"
+            title="{{this.title}}">
+            <div class="svgContainer">
+                {{#if this.svgLink}}
+                <svg>
+                    <use xlink:href={{this.svgLink}}></use>
+                </svg>
+                {{else}}
+                <i class={{iconClasses}}></i>
+                {{/if}}
+            </div>
+            <div class="buttonLabel">
+                {{this.title}}
+            </div>
         </div>
-        <div class="buttonLabel">
-            {{this.title}}
-        </div>
-    </div>
-    {{ /if }}
+    {{/if}}
 </template>