[INFRA-209] Remove nginx related configurations from plane community (#7406)

* Remove deprecated Nginx configuration files and scripts, including Dockerfiles, environment scripts, and configuration templates, to streamline the project structure.

* Update environment configuration and Docker setup for proxy services

- Added LISTEN_PORT and LISTEN_SSL_PORT variables to .env.example and related files.
- Updated Docker Compose files to reference new port variables instead of deprecated NGINX_PORT.
- Adjusted README and variable documentation to reflect changes in port configuration.
- Changed build context for proxy services to use the new directory structure.

* Refactor port configuration in environment and Docker files

- Renamed LISTEN_PORT and LISTEN_SSL_PORT to LISTEN_HTTP_PORT and LISTEN_HTTPS_PORT in .env.example and related files.
- Updated Docker Compose configurations to reflect the new port variable names.
- Adjusted documentation in README and variables.env to ensure consistency with the new naming conventions.

apps/api/.env.example

@@ -28,7 +28,7 @@ AWS_REGION=""
 AWS_ACCESS_KEY_ID="access-key"
 AWS_SECRET_ACCESS_KEY="secret-key"
 AWS_S3_ENDPOINT_URL="http://localhost:9000"
-# Changing this requires change in the nginx.conf for uploads if using minio setup
+# Changing this requires change in the proxy config for uploads if using minio setup
 AWS_S3_BUCKET_NAME="uploads"
 # Maximum file upload limit
 FILE_SIZE_LIMIT=5242880
@@ -39,8 +39,7 @@ DOCKERIZED=1 # deprecated
 # set to 1 If using the pre-configured minio setup
 USE_MINIO=0
 
-# Nginx Configuration
-NGINX_PORT=80
+
 
 # Email redirections and minio domain settings
 WEB_URL="http://localhost:8000"