fix(webapp): add eventsource dep back

Author: carderne

apps/webapp/package.json

@@ -145,6 +145,7 @@
     "dotenv": "^16.4.5",
     "effect": "^3.21.2",
     "emails": "workspace:*",
+    "eventsource": "^3.0.5",
     "evt": "^2.4.13",
     "express": "4.20.0",
     "framer-motion": "^10.12.11",
@@ -201,8 +202,8 @@
     "superjson": "^2.2.1",
     "tailwind-merge": "^3.6.0",
     "tailwind-scrollbar-hide": "^4.0.0",
-    "tw-animate-css": "^1.4.0",
     "tiny-invariant": "^1.2.0",
+    "tw-animate-css": "^1.4.0",
     "uuid": "^14.0.0",
     "ws": "^8.11.0",
     "zod": "3.25.76",