fix: resolve uncaught SyntaxError, other improvements

docker/env/concordia.env

@@ -2,3 +2,4 @@
 REACT_APP_RENDEZVOUS_HOST=/ip4/127.0.0.1
 REACT_APP_RENDEZVOUS_PORT=9090
 REACT_APP_USE_EXTERNAL_CONTRACTS_PROVIDER=true
+REACT_APP_CONTRACTS_VERSION_HASH=docker

docker/env/contracts-provider.env

@@ -1,3 +1,3 @@
 UPLOAD_CONTRACTS_DIRECTORY=/mnt/concordia/contracts/
 LOGS_PATH=/mnt/concordia/logs/
-#CORS_ALLOWED_ORIGINS="http://127.0.0.1:7000;http://localhost:7000;http://127.0.0.1:4444;127.0.0.1:4444"
+#CORS_ALLOWED_ORIGINS="http://127.0.0.1:7000;http://localhost:7000;http://127.0.0.1:7777;http://localhost:7777;http://127.0.0.1:4444;127.0.0.1:4444"

docker/env/contracts.env

@@ -5,4 +5,4 @@ WEB3_PORT=8545
 
 CONTRACTS_PROVIDER_HOST=http://concordia-contracts-provider
 CONTRACTS_PROVIDER_PORT=8400
-CONTRACTS_VERSION_TAG=docker
+CONTRACTS_VERSION_HASH=docker