Auto pretty everything, add initial auth modal.

Sorry this isn't more commits, but, whatever.

src/AuthModal.tsx

@@ -0,0 +1,41 @@
+import Button from "react-bootstrap/Button";
+import Form from "react-bootstrap/Form";
+import Modal from "react-bootstrap/Modal";
+
+function AuthModal() {
+  return (
+    <div
+      className="modal show"
+      style={{ display: "block", position: "initial" }}
+    >
+      <Modal.Dialog>
+        <Modal.Header closeButton>
+          <Modal.Title>Modal title</Modal.Title>
+        </Modal.Header>
+
+        <Modal.Body>
+          <Form>
+            <Form.Group className="mb-3" controlId="formBasicEmail">
+              <Form.Label>Email address</Form.Label>
+              <Form.Control type="email" placeholder="Enter email" />
+              <Form.Text className="text-muted">
+                We'll never share your email with anyone else.
+              </Form.Text>
+            </Form.Group>
+
+            <Form.Group className="mb-3" controlId="formBasicPassword">
+              <Form.Label>Password</Form.Label>
+              <Form.Control type="password" placeholder="Password" />
+            </Form.Group>
+          </Form>
+        </Modal.Body>
+
+        <Modal.Footer>
+          <Button variant="secondary">Close</Button>
+          <Button variant="primary">Save changes</Button>
+        </Modal.Footer>
+      </Modal.Dialog>
+    </div>
+  );
+}
+export default AuthModal;