add icon_path column in experience_links table

apps/backend/app/models/experience_link.py

@@ -29,6 +29,11 @@ class ExperienceLink(Base):
         nullable=False
     )
 
+    icon_path = Column(
+        String(255),
+        nullable=False
+    )
+
     experience_id = Column(
         Integer,
         ForeignKey(