feat: comment and continue Today work (#429)

frontend/index.html

@@ -269,7 +269,10 @@
     <section class="issue-comment-composer" aria-labelledby="issue-comment-title">
       <h2 id="issue-comment-title">Add comment</h2>
       <textarea id="issue-comment" maxlength="10000" placeholder="Write a comment"></textarea>
-      <button id="send-issue-comment" type="button">Post comment</button>
+      <div class="comment-actions">
+        <button id="send-issue-comment" type="button">Post comment</button>
+        <button id="send-issue-comment-next" type="button" hidden>Comment &amp; next</button>
+      </div>
       <div id="issue-comment-status" class="small" aria-live="assertive"></div>
     </section>
     <details class="issue-planning" id="issue-planning">
@@ -470,7 +473,10 @@
     <section class="pull-comment-composer" aria-labelledby="pull-comment-title">
       <h2 id="pull-comment-title">Add comment</h2>
       <textarea id="pull-comment" maxlength="10000" placeholder="Write a comment"></textarea>
-      <button id="send-pull-comment" type="button">Post comment</button>
+      <div class="comment-actions">
+        <button id="send-pull-comment" type="button">Post comment</button>
+        <button id="send-pull-comment-next" type="button" hidden>Comment &amp; next</button>
+      </div>
       <div id="pull-comment-status" class="small" aria-live="assertive"></div>
     </section>
     <details class="pull-review" id="pull-review">
@@ -602,6 +608,7 @@
 <script src="static/card-planning.js"></script>
 <script src="static/today-work.js"></script>
 <script src="static/today-completion.js"></script>
+<script src="static/comment-next.js"></script>
 <script src="static/plan-today.js"></script>
 <script src="static/plan-today-preview.js"></script>
 <script src="static/today-sync.js"></script>