5078 ability to invite team members (#5750)

## Added features
- update team member setting page
- add a section to send invitation by email
- add a new invitation email
- update email font to 'Trebuchet MS' as Google Inter font is not
working, we need to use a web safe font
https://templates.mailchimp.com/design/typography/

## Demo

https://github.com/twentyhq/twenty/assets/29927851/c731d883-1599-4281-87e3-0671f36994ae

## Invitation Email

![image](https://github.com/twentyhq/twenty/assets/29927851/d569fc64-fa0c-4769-a3dd-1193a12b495c)

packages/twenty-emails/src/components/SubTitle.tsx

@@ -0,0 +1,23 @@
+import { ReactNode } from 'react';
+import { Heading } from '@react-email/components';
+
+import { emailTheme } from 'src/common-style';
+
+type SubTitleProps = {
+  value: ReactNode;
+};
+
+const subTitleStyle = {
+  fontFamily: emailTheme.font.family,
+  fontSize: emailTheme.font.size.lg,
+  fontWeight: emailTheme.font.weight.bold,
+  color: emailTheme.font.colors.highlighted,
+};
+
+export const SubTitle = ({ value }: SubTitleProps) => {
+  return (
+    <Heading style={subTitleStyle} as="h3">
+      {value}
+    </Heading>
+  );
+};