refactor: build only one frappe/erpnext image (#1032)

* ci: skip frappe builds

* refactor: build only one frappe/erpnext image

* fix: lint nginx entrypoint script

* docs: update and organize docs

* docs: fix lint errors

* fix(custom): pass base64 encoded apps json

* ci: update dependabot

* docs: update contributing

* docs: remove info about multi image setup

* fix: initiate empty common_site_config.json

default config has host keys set to localhost
causes connection errors

* docs: add details for pwd volumes

* fix: symlink assets instead of copy

* fix: nginx private files

* ci: skip docker compose v2 install for ubuntu-latest

* fix: organize layers

* feat: allow remove git remote for custom image

* docs: allow remove git remote for custom image

* fix: remove duplicate --apps_path

overrides/compose.multi-bench.yaml

@@ -0,0 +1,53 @@
+services:
+  frontend:
+    networks:
+      - traefik-public
+      - bench-network
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network=traefik-public
+      - traefik.http.services.${ROUTER?ROUTER not set}.loadbalancer.server.port=8080
+      - traefik.http.routers.${ROUTER}-http.service=${ROUTER}
+      - traefik.http.routers.${ROUTER}-http.entrypoints=http
+      - traefik.http.routers.${ROUTER}-http.rule=Host(${SITES?SITES not set})
+  configurator:
+    networks:
+      - bench-network
+      - mariadb-network
+  backend:
+    networks:
+      - mariadb-network
+      - bench-network
+  websocket:
+    networks:
+      - bench-network
+      - mariadb-network
+  scheduler:
+    networks:
+      - bench-network
+      - mariadb-network
+  queue-default:
+    networks:
+      - bench-network
+      - mariadb-network
+  queue-short:
+    networks:
+      - bench-network
+      - mariadb-network
+  queue-long:
+    networks:
+      - bench-network
+      - mariadb-network
+  redis:
+    networks:
+      - bench-network
+      - mariadb-network
+
+networks:
+  traefik-public:
+    external: true
+  mariadb-network:
+    external: true
+  bench-network:
+    name: ${ROUTER}
+    external: false