added color/ theme settings, new config window

frontend/package.json

@@ -8,7 +8,6 @@
     "@awesome.me/webawesome": "^3.2.1",
     "@lit-labs/signals": "^0.2.0",
     "@lit-labs/virtualizer": "^2.1.1",
-    "htmx.org": "2.0.8",
     "lit": "^3.2.1"
   },
   "devDependencies": {