fix(app): remove oc-1 theme

packages/ui/src/theme/themes/oc-1.json

@@ -1,35 +0,0 @@
-{
-  "$schema": "https://opencode.ai/desktop-theme.json",
-  "name": "OC-1",
-  "id": "oc-1",
-  "light": {
-    "palette": {
-      "neutral": "#8e8b8b",
-      "ink": "#656363",
-      "primary": "#dcde8d",
-      "accent": "#fb4804",
-      "success": "#12c905",
-      "warning": "#ffdc17",
-      "error": "#fc533a",
-      "info": "#a753ae",
-      "interactive": "#034cff",
-      "diffAdd": "#9ff29a",
-      "diffDelete": "#fc533a"
-    }
-  },
-  "dark": {
-    "palette": {
-      "neutral": "#716c6b",
-      "ink": "#b7b1b1",
-      "primary": "#fab283",
-      "accent": "#ffba92",
-      "success": "#12c905",
-      "warning": "#fcd53a",
-      "error": "#fc533a",
-      "info": "#edb2f1",
-      "interactive": "#034cff",
-      "diffAdd": "#c8ffc4",
-      "diffDelete": "#fc533a"
-    }
-  }
-}