chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

app/components/Avatar/AvatarWithPresence.tsx

@@ -0,0 +1,86 @@
+import { observable } from "mobx";
+import { observer } from "mobx-react";
+import * as React from "react";
+import { WithTranslation, withTranslation } from "react-i18next";
+import styled from "styled-components";
+import User from "~/models/User";
+import UserProfile from "~/scenes/UserProfile";
+import Avatar from "~/components/Avatar";
+import Tooltip from "~/components/Tooltip";
+
+type Props = WithTranslation & {
+  user: User;
+  isPresent: boolean;
+  isEditing: boolean;
+  isCurrentUser: boolean;
+  profileOnClick: boolean;
+};
+
+@observer
+class AvatarWithPresence extends React.Component<Props> {
+  @observable
+  isOpen = false;
+
+  handleOpenProfile = () => {
+    this.isOpen = true;
+  };
+
+  handleCloseProfile = () => {
+    this.isOpen = false;
+  };
+
+  render() {
+    const { user, isPresent, isEditing, isCurrentUser, t } = this.props;
+    const action = isPresent
+      ? isEditing
+        ? t("currently editing")
+        : t("currently viewing")
+      : t("previously edited");
+    return (
+      <>
+        <Tooltip
+          tooltip={
+            <Centered>
+              <strong>{user.name}</strong> {isCurrentUser && `(${t("You")})`}
+              {action && (
+                <>
+                  <br />
+                  {action}
+                </>
+              )}
+            </Centered>
+          }
+          placement="bottom"
+        >
+          <AvatarWrapper isPresent={isPresent}>
+            <Avatar
+              src={user.avatarUrl}
+              onClick={
+                this.props.profileOnClick === false
+                  ? undefined
+                  : this.handleOpenProfile
+              }
+              size={32}
+            />
+          </AvatarWrapper>
+        </Tooltip>
+        <UserProfile
+          user={user}
+          isOpen={this.isOpen}
+          onRequestClose={this.handleCloseProfile}
+        />
+      </>
+    );
+  }
+}
+
+const Centered = styled.div`
+  text-align: center;
+`;
+
+const AvatarWrapper = styled.div<{ isPresent: boolean }>`
+  opacity: ${(props) => (props.isPresent ? 1 : 0.5)};
+  transition: opacity 250ms ease-in-out;
+`;
+
+export default withTranslation()(AvatarWithPresence);