feat: add files popover in note toolbar (#913)

app/assets/javascripts/components/Icon.tsx

@@ -9,6 +9,7 @@ import {
   ArrowLeftIcon,
   ArrowsSortDownIcon,
   ArrowsSortUpIcon,
+  AttachmentFileIcon,
   AuthenticatorIcon,
   CheckBoldIcon,
   CheckCircleIcon,
@@ -17,6 +18,7 @@ import {
   ChevronRightIcon,
   CloseIcon,
   CloudOffIcon,
+  ClearCircleFilledIcon,
   CodeIcon,
   CopyIcon,
   DashboardIcon,
@@ -25,12 +27,22 @@ import {
   EmailIcon,
   EyeIcon,
   EyeOffIcon,
+  FileDocIcon,
+  FileImageIcon,
+  FileMovIcon,
+  FileMusicIcon,
+  FileOtherIcon,
+  FilePdfIcon,
+  FilePptIcon,
+  FileXlsIcon,
+  FileZipIcon,
   HashtagIcon,
   HashtagOffIcon,
   HelpIcon,
   HistoryIcon,
   InfoIcon,
   KeyboardIcon,
+  LinkIcon,
   LinkOffIcon,
   ListBulleted,
   ListedIcon,
@@ -44,9 +56,9 @@ import {
   MoreIcon,
   NotesIcon,
   PasswordIcon,
-  PencilOffIcon,
   PencilFilledIcon,
   PencilIcon,
+  PencilOffIcon,
   PinFilledIcon,
   PinIcon,
   PlainTextIcon,
@@ -75,17 +87,28 @@ import {
   WindowIcon,
 } from '@standardnotes/stylekit';
 
-const ICONS = {
+export const ICONS = {
   'account-circle': AccountCircleIcon,
   'arrow-left': ArrowLeftIcon,
   'arrows-sort-down': ArrowsSortDownIcon,
   'arrows-sort-up': ArrowsSortUpIcon,
+  'attachment-file': AttachmentFileIcon,
   'check-bold': CheckBoldIcon,
   'check-circle': CheckCircleIcon,
   'chevron-down': ChevronDownIcon,
   'chevron-right': ChevronRightIcon,
   'cloud-off': CloudOffIcon,
+  'clear-circle-filled': ClearCircleFilledIcon,
   'eye-off': EyeOffIcon,
+  'file-doc': FileDocIcon,
+  'file-image': FileImageIcon,
+  'file-mov': FileMovIcon,
+  'file-music': FileMusicIcon,
+  'file-other': FileOtherIcon,
+  'file-pdf': FilePdfIcon,
+  'file-ppt': FilePptIcon,
+  'file-xls': FileXlsIcon,
+  'file-zip': FileZipIcon,
   'hashtag-off': HashtagOffIcon,
   'link-off': LinkOffIcon,
   'list-bulleted': ListBulleted,
@@ -121,6 +144,7 @@ const ICONS = {
   history: HistoryIcon,
   info: InfoIcon,
   keyboard: KeyboardIcon,
+  link: LinkIcon,
   listed: ListedIcon,
   lock: LockIcon,
   markdown: MarkdownIcon,