fix: (Dockerfile) update environment variable from VITE_EC2_BACKEND_URL to VITE_API_BASE_URL for consistency in backend configuration

make th Dockerfle also to the VITE_API_BASE_URL new scret varible

Author: Dilusha-Ranasingha

Dockerfile

@@ -9,8 +9,8 @@ WORKDIR /app
 COPY . .
 
 # Pass environment variable at build time
-ARG VITE_EC2_BACKEND_URL
-ENV VITE_EC2_BACKEND_URL=$VITE_EC2_BACKEND_URL
+ARG VITE_API_BASE_URL
+ENV VITE_API_BASE_URL=$VITE_API_BASE_URL
 
 # Install dependencies and build
 RUN npm install && npm run build