style: update login card width and remove padding from stream config

- Increase max-width of the login card from 420px to 650px for improved layout
- Remove padding from the page container in stream config for a cleaner appearance

src/views/login/index.vue

@@ -224,7 +224,7 @@ function goHelp() {
 
 .login__card {
   width: 100%;
-  max-width: 420px;
+  max-width: 650px;
   padding: 36px 32px 28px;
   border-radius: 16px;
   background: rgba(255, 255, 255, 0.06);

src/views/stream/config.vue

@@ -254,7 +254,6 @@ onMounted(() => {
 
 <style lang="scss" scoped>
 .page-container {
-  padding: 20px;
 }
 
 .form-tip {