fix: magrin for filenames (#451)

src/react/components/pages/editorPage/editorPage.scss

@@ -113,15 +113,15 @@
       display: flex;
       flex-direction: row;
       font-size: 70%;
-
       white-space: nowrap;
 
-      .asset-filename {
+        .asset-filename {
         overflow: hidden;
         text-overflow: ellipsis;
         white-space: nowrap;
         flex-grow: 1;
         text-align: center;
+        margin: auto;
       }
     }
   }