[IGN-5852] Fix datetime field formats copied from the Database Query Browser resultsets

[PGriffith]

Ended up in 8.1.25:

Nightly 8.1 Changelogs - 2022

Weekly Changelog: 8.1.25-b20230109 Swing 5852: Change format of date(time) values copied to clipboard from the DB query browser Updated the result table in the DB query browser to copy values to the clipboard in an RFC 2339 compatible local datetime format. In addition, adding shift to the copy keystroke will copy values in a tab-separated format suitable for directly pasting into spreadsheet tools such as MS Excel.