feat: create and start captured issues (#387)

frontend/index.html

@@ -389,6 +389,7 @@
       <div class="create-issue-actions">
         <button id="save-unfiled-issue" type="button">Save for filing</button>
         <button id="submit-new-issue" type="submit">Create &amp; assign to me</button>
+        <button id="create-and-start-issue" type="submit">Create &amp; start</button>
         <div id="create-issue-status" class="small" aria-live="assertive"></div>
       </div>
     </form>
@@ -593,6 +594,7 @@
 <script src="static/conversation.js"></script>
 <script src="static/issue-sheet.js"></script>
 <script src="static/create-issue-sheet.js"></script>
+<script src="static/create-and-start.js"></script>
 <script src="static/pull-sheet.js"></script>
 <script src="static/review-sheet.js"></script>
 <script src="static/work-route.js"></script>