style(post): enhance post separator and adjust tag display for improved layout

package.json

@@ -1,7 +1,7 @@
 {
   "name": "theme-terminal",
   "private": true,
-  "version": "1.2.2",
+  "version": "1.2.7",
   "description": "A terminal like theme for Halo.",
   "scripts": {
     "dev": "vite build --watch",