Build message threads (#3593)

* Adding message thread component

* Add state and mocks

* Rename components and use local state for messages

---------

Co-authored-by: Thomas Trompette <thomast@twenty.com>

packages/twenty-front/src/modules/activities/emails/components/EmailThreadMessage.tsx

@@ -0,0 +1,56 @@
+import React, { useState } from 'react';
+import styled from '@emotion/styled';
+
+import { EmailThreadMessageBody } from '@/activities/emails/components/EmailThreadMessageBody';
+import { EmailThreadMessageBodyPreview } from '@/activities/emails/components/EmailThreadMessageBodyPreview';
+import { EmailThreadMessageSender } from '@/activities/emails/components/EmailThreadMessageSender';
+import { MockedEmailUser } from '@/activities/emails/mocks/mockedEmailThreads';
+
+const StyledThreadMessage = styled.div`
+  border-bottom: 1px solid ${({ theme }) => theme.border.color.light};
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  padding: ${({ theme }) => theme.spacing(4, 6)};
+`;
+
+const StyledThreadMessageHeader = styled.div`
+  display: flex;
+  flex-direction: column;
+  justify-content: space-between;
+  margin-bottom: ${({ theme }) => theme.spacing(2)};
+`;
+
+type EmailThreadMessageProps = {
+  id: string;
+  body: string;
+  sentAt: string;
+  from: MockedEmailUser;
+  to: MockedEmailUser[];
+};
+
+export const EmailThreadMessage = ({
+  body,
+  sentAt,
+  from,
+}: EmailThreadMessageProps) => {
+  const { displayName, avatarUrl } = from;
+  const [isOpen, setIsOpen] = useState(false);
+
+  return (
+    <StyledThreadMessage onClick={() => setIsOpen(!isOpen)}>
+      <StyledThreadMessageHeader>
+        <EmailThreadMessageSender
+          displayName={displayName}
+          avatarUrl={avatarUrl}
+          sentAt={sentAt}
+        />
+      </StyledThreadMessageHeader>
+      {isOpen ? (
+        <EmailThreadMessageBody body={body} />
+      ) : (
+        <EmailThreadMessageBodyPreview body={body} />
+      )}
+    </StyledThreadMessage>
+  );
+};