add page to create bookmarklet

bookmarklet.html

@@ -0,0 +1,24 @@
+<p>your token will be stored inside the bookmark</p>
+<input id="auth_token" placeholder="auth_token" />
+<input id="url" placeholder="https://server/api/v1/add" />
+<button id="button">create bookmark</button>
+
+<a id="scriptLink" style="display: none;"> save me as bookmark!</a>
+
+<script>
+  function button_action() {
+    scriptText = "javascript: (() => { fetch(URL, { method: 'POST', headers: { Authorization: 'Bearer ' + AUTH_TOKEN, 'Content-Type': 'application/json', }, body: JSON.stringify({ title: document.title, url: document.location.href, description: document.title }) }) })();"
+    auth_token = document.getElementById("auth_token").value;
+    url = document.getElementById("url").value;
+
+    newscript = scriptText.replace(
+      "AUTH_TOKEN", "'" + auth_token + "'",
+    ).replace(
+      "URL", "'" + url + "'",
+    );
+    document.getElementById("scriptLink").href = newscript;
+    document.getElementById("scriptLink").style = "";
+  }
+
+  document.getElementById('button').addEventListener('click', button_action);
+</script>