small fixes, update to gnome sdk 48

li.sopht.Flashcards.json

@@ -1,7 +1,7 @@
 {
   "id": "li.sopht.Flashcards",
   "runtime": "org.gnome.Platform",
-  "runtime-version": "47",
+  "runtime-version": "48",
   "sdk": "org.gnome.Sdk",
   "command": "flashcards",
   "separate-locales": false,
@@ -26,7 +26,9 @@
     {
       "name": "blueprint-compiler",
       "buildsystem": "meson",
-      "cleanup": ["*"],
+      "cleanup": [
+        "*"
+      ],
       "sources": [
         {
           "type": "git",