Added alternating colors to charts, reformatted welcome screen to have a more uniform UI, and began implementation of SQL Query page to submit queries via JS client

Author: MichaelCSnyder

ksqLight/package-lock.json

@@ -23,7 +23,6 @@
     "express": "^4.18.1",
     "express-graphql": "^0.12.0",
     "graphql": "^15.8.0",
-    "ksqldb-js": "^1.1.0",
     "livereload": "^0.9.3",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",