fix: remove missing udemy.png reference, improve text justification

- Remove courseLogo reference for Udemy courses (use fallback icon)
- Add text-justify: inter-word and hyphens: auto to intro-text
- Better text flow on iPad/tablet widths with narrow columns

data/cv-en.json

@@ -739,7 +739,7 @@
     {
       "title": "Udemy Certifications",
       "institution": "Udemy",
-      "courseLogo": "udemy.png",
+      "courseLogo": "",
       "location": "Online",
       "date": "2024-2025",
       "duration": "Various",

data/cv-es.json

@@ -744,7 +744,7 @@
     {
       "title": "Certificaciones Udemy",
       "institution": "Udemy",
-      "courseLogo": "udemy.png",
+      "courseLogo": "",
       "location": "Online",
       "date": "2024-2025",
       "duration": "Varios",