Use custom kebab case

Author: compulim

package-lock.json

@@ -68,7 +68,6 @@
     "@msinternal/botframework-webchat-tsconfig": "^0.0.0-0",
     "@tsconfig/strictest": "^2.0.5",
     "@types/node": "^24.1.0",
-    "change-case": "^5.4.4",
     "core-js-pure": "^3.44.0",
     "cross-env": "^10.0.0",
     "type-fest": "^4.41.0",

packages/base/package.json

@@ -1,7 +1,11 @@
 /// <reference lib="dom" />
 
-// change-case/kebabCase() is about 1.5 KiB.
-import { kebabCase } from 'change-case';
+function kebabCase(value: string): string {
+  return value
+    .replace(/([ _A-Z])/gu, '-$1')
+    .replace(/[A-Z]/gu, c => c.toLowerCase())
+    .replace(/([-]+)/gu, '-');
+}
 
 export default function setMetaTag(name: string, content: string): void;
 export default function setMetaTag(name: string, contentMap: ReadonlyMap<string, string | undefined>): void;