rename document_version => viewer

app/components/viewer/base.hbs

-Document Viewer
\ No newline at end of file

app/components/document_version/index.hbs → app/components/viewer/index.hbs

 {{@model.document_version.document.title}}
 
 <div class="d-flex">
-  <DocumentVersion::Thumbnails @pages={{@model.pages}} />
+  <Viewer::Thumbnails @pages={{@model.pages}} />
 
   <div class="d-flex flex-column pages">
     {{#each @model.pages as |page|}}
-      <DocumentVersion::Page @page={{page}} />
+      <Viewer::Page @page={{page}} />
     {{/each}}
   </div>
 </div>

app/components/document_version/thumbnails.hbs → app/components/viewer/thumbnails.hbs

 <div class="d-flex flex-column thumbnails">
   {{#each @pages as |page|}}
-    <DocumentVersion::Thumbnail @page={{page}} />
+    <Viewer::Thumbnail @page={{page}} />
   {{/each}}
 </div>
\ No newline at end of file

app/routes/authenticated/document.js

@@ -26,6 +26,6 @@ export default class DocumentRoute extends Route {
   }
 
   renderTemplate() {
-    this.render('authenticated.document_version');
+    this.render('authenticated.viewer');
   }
 }

app/templates/authenticated/document_version.hbs

-<DocumentVersion @model={{@model}} />
\ No newline at end of file

app/templates/authenticated/viewer.hbs

+<Viewer @model={{@model}} />
\ No newline at end of file