feat: pause Today during quick capture (Closes #1076)

frontend/index.html

@@ -964,6 +964,10 @@
       <h3 id="create-issue-heading">Capture work</h3>
       <button id="cancel-new-issue" type="button">Cancel</button>
     </div>
+    <aside class="today-capture-interruption" id="today-capture-interruption" role="status" hidden>
+      <strong id="today-capture-interruption-label">Today paused</strong>
+      <span class="small">Capture this thought, then return without counting interruption time.</span>
+    </aside>
     <nav class="mobile-create-issue-nav" aria-label="New issue sections">
       <button type="button" data-create-issue-section="describe">Describe</button>
       <button type="button" data-create-issue-section="evidence">Evidence</button>