Update default frontend repository in build script

Author: LazuliKao

build.sh

@@ -5,7 +5,7 @@ gitAuthor="The OpenList Projects Contributors <noreply@openlist.team>"
 gitCommit=$(git log --pretty=format:"%h" -1)
 
 # Set frontend repository, default to OpenListTeam/OpenList-Frontend
-frontendRepo="${FRONTEND_REPO:-OpenListTeam/OpenList-Frontend}"
+frontendRepo="${FRONTEND_REPO:-nbtca/OpenList-Frontend}"
 
 githubAuthArgs=""
 if [ -n "$GITHUB_TOKEN" ]; then