Clean repo/README.md, add option to disable extension and bump version to 2.

mango.js

@@ -1,26 +1,31 @@
-console.log("[Mango] Let's get the business done.")
+const currentHostname = location.hostname;
+let enabled = true;
+
+browser.storage.local.get("enabled").then((result) => {
+  enabled = result.enabled ?? true;
+}).catch((error) => {
+  console.error("Error retrieving enabled state:", error);
+});
+
 
 function checkWhitelist(url) {
-    return browser.storage.local.get("whitelist").then((result) => {
-      const whitelist = result.whitelist || [];
-      return whitelist.includes(url);
-    });
-  }
-  
-  const currentHostname = location.hostname;
-  
-  checkWhitelist(currentHostname).then((isWhitelisted) => {
-    if (!isWhitelisted) {
-        const styles = `
+  return browser.storage.local.get("whitelist").then((result) => {
+    const whitelist = result.whitelist || [];
+    return whitelist.includes(url);
+  });
+}
+
+checkWhitelist(currentHostname).then((isWhitelisted) => {
+  if (!isWhitelisted && enabled) {
+    const styles = `
         * {
-        border-radius: 0 !important;
+          border-radius: 0 !important;
         }
         `;
-        const injectedStyle = document.createElement("style");
-        injectedStyle.type = "text/css";
-        injectedStyle.innerText = styles;
-        document.head.appendChild(injectedStyle);
-    } else {
-        console.log("[Mango] Mercy! This page is whitelisted.")
-    }
-  });
+    const injectedStyle = document.createElement("style");
+    injectedStyle.type = "text/css";
+    injectedStyle.id = "mangoInjectedStyle";
+    injectedStyle.innerText = styles;
+    document.head.appendChild(injectedStyle);
+  }
+});