chore: Clean up inconsistent exports

There was a warning about Fast Refresh being broken because a file that
exported a component didn't **only** export components.

src/Game/Grid/Remainder/Remainder.tsx

@@ -1,40 +1,6 @@
-import { useMemo } from "react";
-import { useWords } from "../../../App/Setup/DataLoader";
-import { useWord } from "../../../App/Setup/GameLoader";
-import { getLegality } from "../../../utils";
-import { useGuesses, useSettings } from "../../guess";
+import { useGuesses } from "../../guess";
 import classes from "./Remainder.module.css";
-
-const format = (v: number) => {
-  if (v < 1_000) {
-    return v;
-  }
-  const thousands = Math.floor(v / 1000);
-  const hundreds = `000${v % 1000}`.substr(-3);
-  return `${thousands}${String.fromCharCode(0xa0)}${hundreds}`;
-};
-
-export const usePossibilities = (guesses: string[]) => {
-  const { showRemaining } = useSettings();
-
-  const words = useWords();
-  const word = useWord();
-  return useMemo(() => {
-    if (!showRemaining) {
-      return {
-        remainders: [],
-        formattedCount: format(0),
-      };
-    }
-
-    let filtered = [...words];
-    guesses.forEach((guess) => {
-      const test = getLegality(word, guess);
-      filtered = filtered.filter((w) => test(w) === "legal");
-    });
-    return { remainders: filtered, formattedCount: format(filtered.length) };
-  }, [guesses, showRemaining, word, words]);
-};
+import { usePossibilities } from "./usePossibilities";
 
 const Remainder = () => {
   const [guessMap] = useGuesses();

src/Game/Grid/Remainder/index.ts

@@ -1,2 +1,2 @@
 export { default } from "./Remainder";
-export { usePossibilities } from "./Remainder";
+export { usePossibilities } from "./usePossibilities";

src/Game/Grid/Remainder/usePossibilities.tsx

@@ -0,0 +1,36 @@
+import { useMemo } from "react";
+import { useWords } from "../../../App/Setup/DataLoader";
+import { useWord } from "../../../App/Setup/GameLoader";
+import { getLegality } from "../../../utils";
+import { useSettings } from "../../guess";
+
+const format = (v: number) => {
+  if (v < 1_000) {
+    return v;
+  }
+  const thousands = Math.floor(v / 1000);
+  const hundreds = `000${v % 1000}`.substr(-3);
+  return `${thousands}${String.fromCharCode(0xa0)}${hundreds}`;
+};
+
+export const usePossibilities = (guesses: string[]) => {
+  const { showRemaining } = useSettings();
+
+  const words = useWords();
+  const word = useWord();
+  return useMemo(() => {
+    if (!showRemaining) {
+      return {
+        remainders: [],
+        formattedCount: format(0),
+      };
+    }
+
+    let filtered = [...words];
+    guesses.forEach((guess) => {
+      const test = getLegality(word, guess);
+      filtered = filtered.filter((w) => test(w) === "legal");
+    });
+    return { remainders: filtered, formattedCount: format(filtered.length) };
+  }, [guesses, showRemaining, word, words]);
+};