smaller fixes

I'll merge it, but this text string are 1:1 copy from the post-pbs-install.sh script. Maybe we should also fix them there.

Co-authored-by: Michel Roegl-Brunner <73236783+michelroegl-brunner@users.noreply.github.com>

json/post-pmg-install.json

@@ -4,7 +4,7 @@
 "categories": [
     1
 ],
-"date_created": "2025-01-17",
+"date_created": "2025-01-20",
 "type": "misc",
 "updateable": false,
 "privileged": false,

misc/post-pmg-install.sh

@@ -1,9 +1,8 @@
 #!/usr/bin/env bash
 
-# Copyright (c) 2021-2025 tteck | community-scripts ORG
+# Copyright (c) 2021-2025 community-scripts ORG
 # Author: thost96 (thost96)
-# License: MIT
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
-# https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
 
 header_info() {
   clear
@@ -76,7 +75,7 @@ EOF
     msg_ok "Disabled 'pmg-enterprise' repository"
     ;;
   no)
-    msg_error "Selected no to Disabling 'pmg-enterprise' repository"
+    msg_error "Selected no to disabling 'pmg-enterprise' repository"
     ;;
   esac
 
@@ -92,7 +91,7 @@ EOF
     msg_ok "Enabled 'pmg-no-subscription' repository"
     ;;
   no)
-    msg_error "Selected no to Enabling 'pmg-no-subscription' repository"
+    msg_error "Selected no to enabling 'pmg-no-subscription' repository"
     ;;
   esac
 
@@ -108,7 +107,7 @@ EOF
     msg_ok "Added 'pmgtest' repository"
     ;;
   no)
-    msg_error "Selected no to Adding 'pmgtest' repository"
+    msg_error "Selected no to adding 'pmgtest' repository"
     ;;
   esac
 
@@ -126,7 +125,7 @@ EOF
       ;;
     no)
       whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox --title "Support Subscriptions" "Supporting the software's development team is essential. Check their official website's Support Subscriptions for pricing. Without their dedicated work, we wouldn't have this exceptional software." 10 58
-      msg_error "Selected no to Disabling subscription nag"
+      msg_error "Selected no to disabling subscription nag"
       ;;
     esac
   fi
@@ -142,7 +141,7 @@ EOF
     msg_ok "Updated Proxmox Mail Gateway"
     ;;
   no)
-    msg_error "Selected no to Updating Proxmox Mail Gateway"
+    msg_error "Selected no to updating Proxmox Mail Gateway"
     ;;
   esac
 
@@ -157,7 +156,7 @@ EOF
     reboot
     ;;
   no)
-    msg_error "Selected no to Rebooting Proxmox Mail Gateway (Reboot recommended)"
+    msg_error "Selected no to reboot Proxmox Mail Gateway (Reboot recommended)"
     msg_ok "Completed Post Install Routines"
     ;;
   esac