iso: fix packages.x86_64 (no inline comments; gstreamer-vaapi -> gst-plugin-va)

Inline comments after a package name broke kitty/flatpak (became invalid
names with trailing whitespace). gstreamer-vaapi was removed from Arch.
calamares is AUR-only -> commented pending a [tanin] rebuild decision.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

iso/build-profile/airootfs/etc/calamares/modules/partition.conf

@@ -0,0 +1,11 @@
+---
+efiSystemPartition:     "/boot"        # systemd-boot wants the ESP at /boot
+efiSystemPartitionSize: 1024M
+userSwapChoices: [ none, small, suspend ]
+drawNestedPartitions:   true
+alwaysShowPartitionLabels: true
+allowManualPartitioning:   true
+initialPartitioningChoice: erase
+initialSwapChoice:         none
+defaultFileSystemType:     "btrfs"
+availableFileSystemTypes:  [ "btrfs", "ext4" ]