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/CommandBarItem.tsx

@@ -0,0 +1,81 @@
+import { BackIcon } from "outline-icons";
+import * as React from "react";
+import styled from "styled-components";
+import Flex from "~/components/Flex";
+import Key from "~/components/Key";
+import { CommandBarAction } from "~/types";
+
+type Props = {
+  action: CommandBarAction;
+  active: boolean;
+};
+
+function CommandBarItem(
+  { action, active }: Props,
+  ref: React.RefObject<HTMLDivElement>
+) {
+  return (
+    <Item active={active} ref={ref}>
+      <Text align="center" gap={8}>
+        <Icon>
+          {action.icon ? (
+            React.cloneElement(action.icon, {
+              size: 22,
+            })
+          ) : (
+            <ForwardIcon color="currentColor" size={22} />
+          )}
+        </Icon>
+        {action.name}
+        {action.children?.length ? "…" : ""}
+      </Text>
+      {action.shortcut?.length ? (
+        <div
+          style={{
+            display: "grid",
+            gridAutoFlow: "column",
+            gap: "4px",
+          }}
+        >
+          {action.shortcut.map((sc: string) => (
+            <Key key={sc}>{sc}</Key>
+          ))}
+        </div>
+      ) : null}
+    </Item>
+  );
+}
+
+const Icon = styled.div`
+  width: 22px;
+  height: 22px;
+  color: ${(props) => props.theme.textSecondary};
+`;
+
+const Text = styled(Flex)`
+  overflow: hidden;
+  text-overflow: ellipsis;
+  flex-shrink: 1;
+`;
+
+const Item = styled.div<{ active?: boolean }>`
+  font-size: 15px;
+  padding: 12px 16px;
+  background: ${(props) =>
+    props.active ? props.theme.menuItemSelected : "none"};
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  cursor: pointer;
+
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  overflow: hidden;
+  min-width: 0;
+`;
+
+const ForwardIcon = styled(BackIcon)`
+  transform: rotate(180deg);
+`;
+
+export default React.forwardRef<HTMLDivElement, Props>(CommandBarItem);