Feat: dockerize the project with Dockerfile and docker-compose

- Added Dockerfile for containerizing the app.
- Created docker-compose.yml for managing services.
- Updated connection strings for Docker compatibility.

docker-compose.yml

@@ -0,0 +1,32 @@
+version: '3.4'
+
+services:
+  db:
+    image: postgres:latest
+    environment:
+      POSTGRES_DB: SurveyBeta
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: MAJEDali645
+    ports:
+      - "5432:5432"
+    volumes:
+      - db_data:/var/lib/postgresql/data
+
+  survey-beta:
+    image: surveybeta
+    build:
+      context: .
+      dockerfile: survey-beta/Dockerfile
+    depends_on:
+      - db
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ConnectionStrings__DefaultConnection=Host=db;Database=SurveyBeta;Username=postgres;Password=MAJEDali645
+    ports:
+      - "8080:80"
+    volumes:
+      - .:/app
+    entrypoint: ["dotnet", "survey-beta.dll"]
+
+volumes:
+  db_data: