Made keycloak partially init from env variables

also fixed theme to russian

.env.template

@@ -0,0 +1,21 @@
+POSTGRES_USER=keycloak
+POSTGRES_PASSWORD= !!!changeme
+POSTGRES_DB=keycloak
+REALM_DISPLAY_NAME=QMolSim
+
+# KEYCLOAK NGINX CONFIG
+KEYCLOAK_HOSTNAME=http://auth.example.com
+KEYCLOAK_PORT=80
+
+# KEYCLOAK REALM AND CLIENT CONFIG
+REALM_NAME=quant_sim-realm
+
+FRONTEND_CLIENT_ID=react-frontend
+FRONTEND_CLIENT_NAME="React Frontend"
+FRONTEND_URL=http://frontend.example.com #The base url for accepted redirects
+FRONTEND_HOME_URI=/quantum #The accepted redirect path for logout
+FRONTEND_REDIRECT_PATH=/* #The accepted redirect paths for login
+
+QUANTUM_BACKEND_CLIENT_ID=quantum-backend
+QUANTUM_BACKEND_CLIENT_SECRET= !!!changeme
+QUANTUM_BACKEND_CLIENT_NAME="Quantum Backend"