style(post): update font sizes and colors in post styling

src/styles/post.scss

@@ -153,9 +153,8 @@
       align-items: center;
       justify-content: flex-end;
       padding-right: 10px;
-      font-size: 0.75rem;
+      font-size: 0.85rem;
       color: var(--foreground);
-      font-family: Hack, Monaco, Consolas, monospace;
       transition: opacity 0.15s ease;
       opacity: 0.8;
 
@@ -173,10 +172,10 @@
 
       .line-breakpoint {
         position: absolute;
-        top: -1px;
         right: -3px;
-        color: #e51400;
+        color: var(--brightRed);
         font-size: 0.875rem;
+        font-family: Hack, Monaco, Consolas, monospace;
         transition: transform 0.15s ease, filter 0.15s ease;
       }