Revert "Restyle the web UI as a dark trading terminal"

This reverts commit d5fa78f1ad.

web/package.json

@@ -10,8 +10,6 @@
   },
   "dependencies": {
     "@element-plus/icons-vue": "^2.3.2",
-    "@fontsource-variable/jetbrains-mono": "^5.3.0",
-    "@fontsource-variable/space-grotesk": "^5.3.0",
     "axios": "^1.20.0",
     "dayjs": "^1.11.23",
     "element-plus": "^2.14.7",