style: update border-radius and padding values across components

- standardize border-radius from 8px to 6px for consistent styling
- adjust padding values from 1rem to 0.75rem for better visual hierarchy
- remove redundant overflow-y properties for cleaner code

docs/.vitepress/theme/components/appendix/deployment/DeploymentBuildDemo.vue

@@ -73,10 +73,10 @@ const startBuild = () => {
 <style scoped>
 .deployment-build {
   border: 1px solid var(--vp-c-divider);
-  border-radius: 8px;
+  border-radius: 6px;
   background: var(--vp-c-bg-soft);
   padding: 0.75rem;
-  margin: 1rem 0;
+  margin: 0.5rem 0;
 }
 
 .header {
@@ -108,7 +108,7 @@ const startBuild = () => {
   gap: 0.5rem;
   padding: 0.75rem;
   background: var(--vp-c-bg);
-  border-radius: 8px;
+  border-radius: 6px;
   overflow-x: auto;
 }