Add option to show the number of recent posts made by the OP

Add an option to show the number of recent posts made by the OP next to
their username in threads (profileindicator_alt).

If this option and the profileindicator options are set, then the
indicator dot and the recent posts number badge will be merged into a
single component.

Change-Id: If2fb1e8f0066d75ef136b6f93869b7fc2f0c7e57
diff --git a/src/options.html b/src/options.html
index cd325a0..6daa9ca 100644
--- a/src/options.html
+++ b/src/options.html
@@ -6,22 +6,29 @@
     <link rel="stylesheet" href="options.css">
   </head>
   <body>
-    <p>
-      <input type="checkbox" id="list"> <label for="list" data-i18n="list"></label><br>
-      <input type="checkbox" id="thread"> <label for="thread" data-i18n="thread"></label><br>
-      <input type="checkbox" id="threadall"> <label for="threadall" data-i18n="threadall"></label>
-    </p>
-    <h4 data-i18n="enhancements"></h4>
-    <p>
-      <input type="checkbox" id="fixedtoolbar"> <label for="fixedtoolbar" data-i18n="fixedtoolbar"></label><br>
-      <input type="checkbox" id="redirect"> <label for="redirect" data-i18n="redirect"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
-      <input type="checkbox" id="history"> <label for="history" data-i18n="history"></label><br>
-      <input type="checkbox" id="loaddrafts"> <label for="loaddrafts" data-i18n="loaddrafts"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
-      <input type="checkbox" id="increasecontrast"> <label for="increasecontrast" data-i18n="increasecontrast"></label><br>
-      <input type="checkbox" id="stickysidebarheaders"> <label for="stickysidebarheaders" data-i18n="stickysidebarheaders"></label><br>
-      <input type="checkbox" id="profileindicator"> <label for="profileindicator" data-i18n="profileindicator"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
-    </p>
-    <p class="actions"><button id="save" data-i18n="save"></button></p>
+    <form>
+      <p>
+        <input type="checkbox" id="list"> <label for="list" data-i18n="list"></label><br>
+        <input type="checkbox" id="thread"> <label for="thread" data-i18n="thread"></label><br>
+        <input type="checkbox" id="threadall"> <label for="threadall" data-i18n="threadall"></label>
+      </p>
+      <h4 data-i18n="enhancements"></h4>
+      <p>
+        <input type="checkbox" id="fixedtoolbar"> <label for="fixedtoolbar" data-i18n="fixedtoolbar"></label><br>
+        <input type="checkbox" id="redirect"> <label for="redirect" data-i18n="redirect"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
+        <input type="checkbox" id="history"> <label for="history" data-i18n="history"></label><br>
+        <input type="checkbox" id="loaddrafts"> <label for="loaddrafts" data-i18n="loaddrafts"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
+        <input type="checkbox" id="increasecontrast"> <label for="increasecontrast" data-i18n="increasecontrast"></label><br>
+        <input type="checkbox" id="stickysidebarheaders"> <label for="stickysidebarheaders" data-i18n="stickysidebarheaders"></label><br>
+      </p>
+      <h4 data-i18n="profileindicator_header"></h4>
+      <p>
+        <input type="checkbox" id="profileindicator"> <label for="profileindicator" data-i18n="profileindicator"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
+        <input type="checkbox" id="profileindicatoralt"> <label for="profileindicatoralt" data-i18n="profileindicatoralt"></label> <span class="experimental-label" data-i18n="experimental_label"></span><br>
+        <a href="https://gerrit.avm99963.com/plugins/gitiles/infinitegforums/+/refs/heads/master/docs/op_indicator.md" target="_blank" rel="noreferrer noopener" data-i18n="profileindicator_moreinfo"></a><br>
+      </p>
+      <p class="actions"><button id="save" data-i18n="save"></button></p>
+    </form>
     <div id="save-indicator"></div>
     <script src="common/common.js"></script>
     <script src="options.js"></script>