fix: prod build broken because of missing dependency.

Added dependency as workaround, should be fixed by upgrading to nx v8.x

package.json

@@ -82,6 +82,7 @@
     "semver": "5.4.1",
     "shortid": "^2.2.8",
     "socket.io": "2.2.0",
+    "source-map-support": "^0.5.12",
     "tslib": "^1.9.0",
     "winston": "^3.2.1"
   },

yarn.lock

@@ -8767,6 +8767,14 @@ [email protected], source-map-support@~0.5.10:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
 
+source-map-support@^0.5.12:
+  version "0.5.12"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.12.tgz#b4f3b10d51857a5af0138d3ce8003b201613d599"
+  integrity sha512-4h2Pbvyy15EE02G+JOZpUCmqWJuqrs+sEkzewTm++BPi7Hvn/HwcqLAcNxYAyI0x13CpPPn+kMjl+hplXMHITQ==
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-support@^0.5.5, source-map-support@^0.5.6, source-map-support@~0.5.6:
   version "0.5.9"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"