Add synchronized DER view and investigation bundles

trustlab/ui/index.html

@@ -32,6 +32,14 @@
           <p id="probe-message" class="probe-message" aria-live="polite"></p>
         </form>
 
+        <div class="bundle-actions">
+          <button id="export-bundle" class="button quiet" type="button" hidden>Export investigation</button>
+          <label class="button quiet import-button">
+            Import investigation
+            <input id="import-bundle" type="file" accept="application/json,.json,.browsec-investigation.json">
+          </label>
+        </div>
+
         <label class="toggle">
           <input id="community-enabled" type="checkbox" checked>
           <span>Village community evidence</span>