chore: update ngx-markdown to version 20.1.0 in package.json and package-lock.json

Author: sonusindhu

package-lock.json

@@ -23,7 +23,7 @@
  "@angular/router": "^21.0.0-rc.1",
  "@tailwindcss/postcss": "^4.1.3",
  "clipboard": "^2.0.11",
- "ngx-markdown": "^20.0.0",
+ "ngx-markdown": "^20.1.0",
  "postcss": "^8.5.3",
  "rxjs": "~7.8.0",
  "tailwindcss": "^4.1.3",