fix: update remaining Markr references to Boris

- Update Login component welcome message
- Update package-lock.json name references

package-lock.json

@@ -1,11 +1,11 @@
 {
-  "name": "markr",
+  "name": "boris",
   "version": "0.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "markr",
+      "name": "boris",
       "version": "0.1.1",
       "dependencies": {
         "@fortawesome/fontawesome-svg-core": "^7.1.0",

src/components/Login.tsx

@@ -30,7 +30,7 @@ const Login: React.FC<LoginProps> = ({ onLogin }) => {
   return (
     <div className="login-container">
       <div className="login-card">
-        <h2>Welcome to Markr</h2>
+        <h2>Welcome to Boris</h2>
         <p>Connect your nostr account to view your bookmarks</p>
         <button 
           onClick={handleLogin}