[IMPROVE] Rewrite read receipts to react. #23455

app/message-read-receipt/client/index.js

app/message-read-receipt/client/views/readReceipts.html

app/message-read-receipt/client/views/readReceipts.js

app/ui-utils/client/lib/MessageAction.js

app/ui/client/lib/fileUpload.js

client/components/Omnichannel/modals/ForwardChatModal.js

...ents/Omnichannel/modals/ModalSeparator/ModalSeparator.tsx

client/components/Omnichannel/modals/ModalSeparator/index.ts

...nt/components/Omnichannel/modals/ModalSeparator/style.css

client/components/modals/ReactionList/index.ts

client/contexts/ServerContext/methods.ts

client/contexts/ServerContext/methods/getReadReceipts.ts

client/hooks/useUserDisplayName.ts

client/importPackages.ts

client/lib/getUserDisplayName.ts

client/startup/readReceipt.ts

client/views/room/modals/FileUploadModal/FilePreview.tsx

...ws/room/modals/FileUploadModal/FileUploadModal.stories.js

client/views/room/modals/FileUploadModal/FileUploadModal.tsx

client/views/room/modals/FileUploadModal/GenericPreview.tsx