feat: add project logo support and rename to Personal Projects

Changes:
- Created /static/images/projects/ folder for project logos
- Added ProjectLogo field to Project struct
- Updated cv-en.json and cv-es.json with projectLogo fields:
  - somosunaola.png for Somos Una Ola
  - herrumbre-vivo.png for Herrumbre Vivo Arte
- Updated template to display project logos with fallback to web icon
- Added CSS styling for project logo images (80×80px)
- Renamed section from "Projects" to "Personal Projects"

Logo images will display when PNG files are added to /static/images/projects/

static/css/main.css

@@ -954,6 +954,16 @@ iconify-icon {
     justify-content: center;
 }
 
+.project-icon img {
+    width: 80px;
+    height: 80px;
+    object-fit: contain;
+    border-radius: 4px;
+    border: 1px solid #ddd;
+    background: #f5f5f5;
+    padding: 4px;
+}
+
 .default-project-icon {
     width: 80px;
     height: 80px;