get rid of page action, start working on browser action popup

src/browser-action.ts

@@ -0,0 +1,29 @@
+import { API_URL } from "common"
+
+const login_form = document.getElementById("login-form") as HTMLFormElement
+const login_status = document.getElementById("login-status")
+if (localStorage.getItem("accessToken")) {
+    login_status.setAttribute("style", "visibility: visible;")
+}
+login_form.addEventListener("submit", (event) => { event.preventDefault(); submit_login_form() })
+
+async function submit_login_form() {
+
+    const login_url = new URL("/login", API_URL)
+
+    const request = new Request(login_url,
+        {
+            method: "POST",
+            body: new FormData(login_form)
+        })
+
+    const response = await fetch(request)
+
+    if (response.ok) {
+        const body = await response.json()
+        const token = body.access_token
+        localStorage.setItem("accessToken", token)
+        const status_el = document.getElementById("login-status")
+        status_el.setAttribute("style", "visibility: visible;")
+    }
+}