aerospace: Migrated config to version 2.

.config/aerospace/aerospace.toml

@@ -1,6 +1,8 @@
 # This needs jankyborders and hyperkey installed.
 # Hyperkey must be configured to use caps lock as hyperkey and must not include shift in hyperkey.
 
+config-version = 2
+
 # Available commands: https://nikitabobko.github.io/AeroSpace/commands
 after-login-command = []
 
@@ -45,6 +47,12 @@ on-focused-monitor-changed = ['move-mouse monitor-lazy-center']
 # Also see: https://nikitabobko.github.io/AeroSpace/goodies#disable-hide-app
 automatically-unhide-macos-hidden-apps = true
 
+# List of workspaces that should stay alive even when they contain no windows,
+# even when they are invisible.
+# This config option is only available since 'config-version = 2'
+# Fallback value (if you omit the key): persistent-workspaces = []
+persistent-workspaces = ["1", "2", "3", "4", "5", "6", "7"]
+
 # Possible values: (qwerty|dvorak)
 # See https://nikitabobko.github.io/AeroSpace/guide#key-mapping
 [key-mapping]