add json upload button and add page reload button to server and player pages

src/app/common/hastebin.ts

@@ -0,0 +1,17 @@
+const HASTE_URL: string = "https://haste.fascinated.cc";
+
+/**
+ * Creates a new haste with the given content.
+ *
+ * @param content the content to create the haste with
+ * @returns the URL of the created haste
+ */
+export async function createHaste(content: string): Promise<string> {
+  const response = await fetch(`${HASTE_URL}/documents`, {
+    method: "POST",
+    body: content,
+  });
+
+  const { key } = await response.json();
+  return `${HASTE_URL}/${key}`;
+}