content: rename site case to site-portfolio

src/partials/mini-projects-section.html

@@ -51,7 +51,7 @@
             <li class="mini-projects-grid__item" data-mp-cells="2">
               <a
                 class="mp-card mp-card--link mp-card--compact"
-                href="cases/site-with-ai-ide/"
+                href="cases/site-portfolio/"
                 aria-label="Этот сайт — открыть кейс"
               >
                 <div class="mp-card__body">