♻️ Migrate default background to white

Closes #248

packages/db/prisma/migrations/20230124131622_migrate_default_background_color/migration.sql

@@ -0,0 +1,16 @@
+-- Set background to white for all themes that have no background color set
+UPDATE
+  "Typebot" t
+SET
+  "theme" = jsonb_set(
+    jsonb_set(
+      t."theme",
+      '{general,background,type}',
+      '"Color"'
+    ),
+    '{general,background,content}',
+    '"#FFFFFF"'
+  ),
+  "updatedAt" = now()
+WHERE
+  t."theme" -> 'general' -> 'background' ->> 'type' = 'None'

packages/models/src/features/typebot/theme.ts

@@ -58,7 +58,10 @@ export const defaultTheme: Theme = {
       placeholderColor: '#9095A0',
     },
   },
-  general: { font: 'Open Sans', background: { type: BackgroundType.NONE } },
+  general: {
+    font: 'Open Sans',
+    background: { type: BackgroundType.COLOR, content: '#ffffff' },
+  },
 }
 
 export type Theme = z.infer<typeof themeSchema>