Add swapfile option and set as initial choice.

debian/changelog

@@ -7,6 +7,8 @@ calamares-settings-ubuntu (1:21.04.1) hirsute; urgency=medium
   [ Dan Simmons ]
   * Welcome to the Hirsute Hippo!
   * Set sambashare user as a system user. (LP: #1857364)
+  * Add swapfile as an opion and set it as the initial choice
+    (LP: 1881191)
 
  -- apt-ghetto <apt-ghetto@lubuntu.me>  Sat, 24 Oct 2020 10:47:15 +0200
 

lubuntu/modules/partition.conf

@@ -1,5 +1,8 @@
 efiSystemPartition: "/boot/efi"
 enableLuksAutomatedPartitioning: true
-userSwapChoices: none
+userSwapChoices:
+    - none
+    - file
+initialSwapChoice: file
 drawNestedPartitions: true
 defaultFileSystemType: "ext4"