feat: file mobile Drafts sequentially (Closes #629)

frontend/index.html

@@ -550,6 +550,14 @@
         <div class="small" id="create-issue-attachment-status" aria-live="polite"></div>
       </section>
       <section class="create-issue-filing" id="create-issue-filing" hidden>
+      <aside class="draft-filing-session" id="draft-filing-session" aria-live="polite" hidden>
+        <strong id="draft-filing-progress"></strong>
+        <span class="small" id="draft-filing-remaining"></span>
+        <div class="draft-filing-session-actions">
+          <button id="previous-draft" type="button">Previous</button>
+          <button id="skip-draft" type="button">Skip</button>
+        </div>
+      </aside>
       <div class="create-issue-repository-picker">
         <label for="create-issue-repository-search">Repository search
           <input id="create-issue-repository-search" type="search" maxlength="80" placeholder="Search accessible repositories" autocomplete="off" />
@@ -870,6 +878,7 @@
 <script src="static/widgets.js"></script>
 <script src="static/drafts.js"></script>
 <script src="static/unfiled-captures.js"></script>
+<script src="static/draft-filing-session.js"></script>
 <script src="static/draft-capacity-dialog.js"></script>
 <script src="static/outbox-coordinator.js"></script>
 <script src="static/background-issue-sync.js"></script>