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/Sidebar/components/Section.ts

@@ -0,0 +1,16 @@
+import styled from "styled-components";
+import Flex from "~/components/Flex";
+
+const Section = styled(Flex)`
+  position: relative;
+  flex-direction: column;
+  margin: 0 8px 12px;
+  min-width: ${(props) => props.theme.sidebarMinWidth}px;
+  flex-shrink: 0;
+
+  &:first-child {
+    margin-top: 20px;
+  }
+`;
+
+export default Section;