UI/UX: Fix blockchain-blocks skeleton. (#697)

* Fix blockchain-blocks skeleton.

* Fix blockchain skeleton background.

* Fix mempool blockchain skeleton.

* Add e2e testing.
Add tsconfig.
Fix mempool fit to screen.

* Fix wrong return.
Fix e2e testing.

* Fix blockchainblocks connectionstate.
Add init action to websocket mock.
Add e2e testing for droping websock connection.

* Ref e2e code for websocket connection.
Fix blockchain blocks skeleton.

* Fix state connections.
Remove .only e2e tests.

* Fix mempool blocks skeleton.

* Add fit screen to empty blocks.

frontend/cypress/tsconfig.json

@@ -2,7 +2,9 @@
   "extends": "../tsconfig.json",
   "include": ["**/*.ts"],
   "compilerOptions": {
-    "sourceMap": false,
-    "types": ["cypress"]
+    "types": ["cypress"],
+    "lib": ["es2015", "dom"],
+    "allowJs": true,
+    "noEmit": true,
   }
 }