Add styles as devDependencies

Author: compulim

package-lock.json

@@ -61,6 +61,7 @@
     "start:tsup": "npm run build:tsup -- --watch"
   },
   "localDependencies": {
+    "@msinternal/botframework-webchat-styles": "development",
     "@msinternal/botframework-webchat-tsconfig": "development",
     "botframework-webchat": "production"
   },
@@ -75,7 +76,8 @@
     ]
   },
   "devDependencies": {
-    "@msinternal/botframework-webchat-tsconfig": "^0.0.0-0",
+    "@msinternal/botframework-webchat-styles": "0.0.0-0",
+    "@msinternal/botframework-webchat-tsconfig": "0.0.0-0",
     "@types/math-random": "^1.0.2",
     "@types/node": "^24.1.0",
     "tsup": "^8.5.0",