chore: Email + mailer refactor (#3342)

* Huge email refactor

* fix: One rename too many

* comments

server/emails/templates/components/Button.tsx

@@ -0,0 +1,24 @@
+import * as React from "react";
+
+type Props = {
+  href: string;
+};
+
+const style: React.CSSProperties = {
+  display: "inline-block",
+  padding: "10px 20px",
+  color: "#FFFFFF",
+  background: "#000000",
+  borderRadius: "4px",
+  fontWeight: 500,
+  textDecoration: "none",
+  cursor: "pointer",
+};
+
+const Button: React.FC<Props> = (props) => (
+  <a {...props} style={style}>
+    {props.children}
+  </a>
+);
+
+export default Button;