fix: decrease author card detail font sizes to 0.875rem

Agent-Logs-Url: https://github.com/recodehive/recode-website/sessions/e50cf13a-05a9-4084-839f-bfe9cd4d343d

Co-authored-by: sanjay-kv <30715153+sanjay-kv@users.noreply.github.com>

Author: Copilot

src/theme/BlogPostItem/Footer/styles.module.css

@@ -85,14 +85,14 @@
 .authorMeta {
   margin: 0.35rem 0 0;
   color: var(--ifm-color-emphasis-700);
-  font-size: 1rem;
+  font-size: 0.875rem;
 }
 
 .authorSummary {
   margin: 0.65rem 0 0;
   color: var(--ifm-color-emphasis-800);
-  font-size: 1.1rem;
-  line-height: 1.4;
+  font-size: 0.875rem;
+  line-height: 1.625;
 }
 
 .githubButton {