refactor: update to support new API design.

src/options.html

@@ -27,24 +27,6 @@
                 <span class="help">Preset to use for the URL</span>
             </div>
 
-            <div class="field">
-                <label class="label" for="template">Output Template</label>
-                <div class="control">
-                    <input type="text" class="input" id="template"
-                           placeholder="Leave empty to use default output template.">
-                </div>
-                <span class="help">Filename template to use for the output file.</span>
-            </div>
-
-            <div class="field">
-                <label class="label" for="folder">Download Folder</label>
-                <div class="control">
-                    <input type="text" class="input" id="folder"
-                           placeholder="Leave empty to use default download path.">
-                </div>
-                <span class="help">Where to save downloaded files.</span>
-            </div>
-
             <div class="field">
                 <label class="label" for="username">Auth Username</label>
                 <div class="control">