Reorder chat form inputs so submit has priority

When you press enter to submit a form and there are multiple submittable
inputs (e.g. type="image" / type="submit"), Firefox chooses the one that
appears first in markup. Before this commit the image input (aka the "I
want a new captcha" button) appeared before the submit button which
meant pressing enter just reloaded the captcha instead of submitting the
comment.

anonstream/static/anonstream.js

@@ -15,7 +15,7 @@ const jsmarkup_stream_video = '<video id="stream__video" autoplay controls></vid
 const jsmarkup_stream_offline = '<header id="stream__offline"><h1>[offline]</h1></header>'
 const jsmarkup_info = '<div id="info_js" data-js="true"></div>';
 const jsmarkup_info_float = '<aside id="info_js__float"></aside>';
-const jsmarkup_info_float_button = '<button id="info_js__float__button">Reload stream</button>';
+const jsmarkup_info_float_button = '<button id="info_js__float__button" accesskey="r">Reload stream</button>';
 const jsmarkup_info_float_viewership = '<div id="info_js__float__viewership"></div>';
 const jsmarkup_info_float_uptime = '<div id="info_js__float__uptime"></div>';
 const jsmarkup_info_title = '<header id="info_js__title"></header>';
@@ -41,11 +41,11 @@ const jsmarkup_chat_form = `\
       <span data-verbose="false">&times;</span>
     </span>
   </div>
+  <input id="chat-form_js__submit" type="submit" value="Chat" accesskey="p" disabled>
   <input id="chat-form_js__captcha-digest" type="hidden" name="captcha-digest" disabled>
   <input id="chat-form_js__captcha-image" type="image" width="72" height="30">
   <input id="chat-form_js__captcha-answer" name="captcha-answer" placeholder="Captcha" disabled>
   <input id="chat-form_js__settings" type="image" src="/static/settings.svg" width="28" height="28" alt="Settings">
-  <input id="chat-form_js__submit" type="submit" value="Chat" accesskey="p" disabled>
   <article id="chat-form_js__notice">
     <button id="chat-form_js__notice__button" type="button">
       <header id="chat-form_js__notice__button__header"></header>

anonstream/static/style.css

@@ -364,6 +364,7 @@ noscript {
 }
 #chat-form_js__submit {
   grid-column: 5;
+  grid-row: 2;
 }
 #chat-form_js:not([data-captcha]) > #chat-form_js__captcha-image,
 #chat-form_js:not([data-captcha]) > #chat-form_js__captcha-answer {

anonstream/templates/nojs_info.html

@@ -140,7 +140,7 @@
       {% if user.presence != Presence.WATCHING %}
         <form id="float__form" action="{{ url_for('nojs_stream') }}" target="stream_nojs">
           <input type="hidden" name="token" value="{{ user.token }}">
-          <input type="submit" value="Reload stream">
+          <input type="submit" value="Reload stream" accesskey="r">
         </form>
       {% endif %}
       <div id="float__viewership">{{ viewership }} viewers</div>