Add subcommand aliases to zsh completion

Also sort the list alphabetically.

misc/zsh/_khard

@@ -47,21 +47,21 @@ case $state in
     # Define an array with the subcommands and the description.
     local -a subcommands_array
     subcommands_array=(
-      'list:list all (selected) contacts'
-      'details:show details for a contact'
-      'export:export a contact'
-      'birthdays:list birthdays'
-      'email:list email addresses'
-      'phone:list phone numbers'
-      'source:edit the source vcard of a contact'
-      'new:add a new contact'
-      'add-email:add email address from email header to a contact'
-      'merge:merge two contacts'
-      'modify:edit a contact'
-      'copy:copy a contact to another addressbook'
-      'move:move a contact to another addressbook'
-      'remove:delete a contact'
-      'addressbooks:list available addressbooks'
+      add-email:'add email address from email header to a contact'
+      {addressbooks,abooks}:'list available addressbooks'
+      {birthdays,bdays}:'list birthdays'
+      {copy,cp}:'copy a contact to another addressbook'
+      {details,show}:'show details for a contact'
+      email:'list email addresses'
+      export:'export a contact'
+      {list,ls}:'list all (selected) contacts'
+      merge:'merge two contacts'
+      {modify,edit,ed}:'edit a contact'
+      {move,mv}:'move a contact to another addressbook'
+      {new,add}:'add a new contact'
+      phone:'list phone numbers'
+      {remove,rm,del,delete}:'delete a contact'
+      {source,src}:'edit the source vcard of a contact'
     )
     # Use this array to complete the subcommands.
     _describe -t subcommands 'khard subcommands' subcommands_array && ret=0
@@ -125,7 +125,7 @@ case $state in
     case $words[1] in
       addressbooks|abooks)
         options+=();;
-      list|ls|details|source|remove|delete|del|rm)
+      list|ls|details|show|source|src|remove|delete|del|rm)
         options+=(
           $default_addressbook_options $default_search_options $sort_options
         );;
@@ -166,7 +166,7 @@ case $state in
         options+=(
           $copy_move_addressbook_options $default_search_options $sort_options
         );;
-      modify|edit)
+      modify|edit|ed)
         options+=(
           $default_addressbook_options $template_file_input_options $default_search_options $sort_options
         );;