Node Uptime (#196)

* fix: node stats updating live
* fix: Propagation time for first node to hit a block
* chore: Leaner feed serialization
* fix: Handle old nodes with stringified network_state
* feat: Add Node Uptime to the list
* chore: Remove old backend from test pipeline

scripts/build-all.sh

@@ -1 +1 @@
-yarn build:common && yarn build:backend && yarn build:frontend
+yarn build:common && yarn build:frontend

scripts/build-backend.sh

@@ -1 +0,0 @@
-tsc -p packages/backend

scripts/start-backend.sh

@@ -1,3 +0,0 @@
-scripts/build-common.sh
-scripts/build-backend.sh
-node packages/backend/build/index.js

scripts/test.sh

@@ -1 +1 @@
-yarn && tsc -p packages/common && tsc -p packages/backend && node packages/common/test | tap-spec && cd packages/backend && yarn test && cd ../frontend && yarn test && cd ../../
+yarn && tsc -p packages/common && node packages/common/test | tap-spec && cd packages/frontend && yarn test && cd ../../