fix(fastfetch): update fastfetch config for Plasma 6.6 (#105)

* fix: update fastfetch config

current fastfetch crashes on Plasma 6.6, this fixes the issue for the
time being. Doesn't cause issues on stable

* fix indent

Author: inffy

system_files/shared/usr/share/ublue-os/fastfetch.jsonc

@@ -3,6 +3,9 @@
   "display": {
     "separator": "  "
   },
+  "general": {
+    "dsForceDrm": true
+  },
   "modules": [
     {
       "type": "title",