refactor: massive USRPFP overhaul (#3)

This repo completely overhauls how USRPFP works. Some changes include:
- Deleted some leftover files
- Edited README.md a bit
- Avatars and badges are now stored in `db/data.json`
- CSS file (`db/dist.css`) is automatically generated by a GitHub
workflow

If you have questions, lmk

.github/scripts/generate/index.mjs

@@ -0,0 +1,55 @@
+import { readFile, writeFile } from "fs/promises";
+import { join } from "path";
+import UglifyCSS from "uglifycss";
+
+console.time("Done");
+
+const uglify = !process.argv.includes("--debug");
+
+console.log("Getting templates...");
+const templateLines = (
+  await readFile(join("../../", "db", "template.css"), "utf8")
+)
+  .replace(/\r/g, "")
+  .split("\n");
+
+const templates = {
+  avatar: "",
+  badge: "",
+};
+
+for (const id of Object.keys(templates)) {
+  const start = templateLines.findIndex(
+      (x) => x === `/* ${id.toUpperCase()}-TEMPLATE-BEGIN */`
+    ),
+    end = templateLines.findIndex(
+      (x) => x === `/* ${id.toUpperCase()}-TEMPLATE-END */`
+    );
+
+  if (start >= 0 && end >= 0)
+    templates[id] = templateLines.slice(start + 1, end).join("\n");
+  else throw new Error(`Failed to get template lines for: ${id}`);
+}
+
+console.log("Generating dist.css...");
+const data = JSON.parse(
+  await readFile(join("../../", "db", "data.json"), "utf8")
+);
+
+const dist = [];
+
+for (const [id, img] of Object.entries(data.avatars)) {
+  dist.push(templates.avatar.replace(/{id}/g, id).replace(/{img}/g, img));
+}
+for (const [username, img] of Object.entries(data.badges)) {
+  dist.push(
+    templates.badge.replace(/{username}/g, username).replace(/{img}/g, img)
+  );
+}
+
+await writeFile(
+  join("../../", "db", "dist.css"),
+  uglify ? UglifyCSS.processString(dist.join("\n")) : dist.join("\n\n")
+);
+
+console.timeEnd("Done");