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/CollectionIcon.tsx

@@ -0,0 +1,39 @@
+import { observer } from "mobx-react";
+import { CollectionIcon } from "outline-icons";
+import { getLuminance } from "polished";
+import * as React from "react";
+import Collection from "~/models/Collection";
+import { icons } from "~/components/IconPicker";
+import useStores from "~/hooks/useStores";
+
+type Props = {
+  collection: Collection;
+  expanded?: boolean;
+  size?: number;
+};
+
+function ResolvedCollectionIcon({ collection, expanded, size }: Props) {
+  const { ui } = useStores();
+
+  // If the chosen icon color is very dark then we invert it in dark mode
+  // otherwise it will be impossible to see against the dark background.
+  const color =
+    ui.resolvedTheme === "dark" && collection.color !== "currentColor"
+      ? getLuminance(collection.color) > 0.09
+        ? collection.color
+        : "currentColor"
+      : collection.color;
+
+  if (collection.icon && collection.icon !== "collection") {
+    try {
+      const Component = icons[collection.icon].component;
+      return <Component color={color} size={size} />;
+    } catch (error) {
+      console.warn("Failed to render custom icon " + collection.icon);
+    }
+  }
+
+  return <CollectionIcon color={color} expanded={expanded} size={size} />;
+}
+
+export default observer(ResolvedCollectionIcon);