Add confirm on close for editors

[icewolfz]

Add a confirm dialog on close when advanced editor or compose main windows are closed to ensure data is not lost

maybe some options:
Remember unsent composed mail - Save any text until sent even when window closed
Remember unsent advanced editor - Save any test for advanced editor when window closed, this will require checking opener as the code editor uses the editor window as well

[icewolfz]

The saved text would be best saved to a data file due to size of text as would be a pain to load the text every time if never used so something like DATA\mail.json and aedit.tmp or something

the mail should be a json as it needs to save also the 3 fields in format of:

{
   "subject":"",
   "to":"",
   "cc":"",
   "body":""
}

[icewolfz]

Will need to do it per character so default/global use compose.json/adv.txt
and for each character save as {characters}\ID.compose and ID.adv this way its saved per character global depending how they are using the client, this will also require extending the character manager to move/copy the data and maybe a button to clear it will not worry about allowing users to pick the file as its ment to be a temp holder of data to restore state not a config file

maybe add an option to reset/clear them in the prefs granted can just open advanced editor or composer and edit the data manually