chore: add chrome extension codes

extension/popup.js

@@ -0,0 +1,26 @@
+const getCorgiData = () => {
+  return new Promise((resolve) => {
+    chrome.storage.local.get(["corgi"], (data) => {
+      resolve(data?.corgi);
+    });
+  });
+};
+
+const saveButton = document.body.querySelector("#save-button");
+const domainInput = document.body.querySelector("#domain-input");
+const openIdInput = document.body.querySelector("#openid-input");
+
+saveButton.addEventListener("click", () => {
+  chrome.storage.local.set({
+    corgi: {
+      domain: domainInput.value,
+      openId: openIdInput.value,
+    },
+  });
+});
+
+(async () => {
+  const corgiData = await getCorgiData();
+  domainInput.value = corgiData.domain;
+  openIdInput.value = corgiData.openId;
+})();