feat: Ability to upload multiple attachments at once

Closes #908

client/src/utils/element-helpers.js

@@ -1,5 +1,8 @@
-// eslint-disable-next-line import/prefer-default-export
 export const focusEnd = (element) => {
   element.focus();
   element.setSelectionRange(element.value.length + 1, element.value.length + 1);
 };
+
+export const isActiveTextElement = (element) =>
+  ['input', 'textarea'].includes(element.tagName.toLowerCase()) &&
+  element === document.activeElement;