Add option to log QSO end times separately

[phl0]

Add user option to enable separate logging of QSO end times. Branch rebased due to merge conflict in old PR #2632.

Squashed commit of the following:

commit 595f620
Author: phl0 git@xxx.de
Date: Wed Nov 1 13:58:05 2023 +0100

Update languages

commit f670a06
Author: phl0 git@xxx.de
Date: Wed Nov 1 13:55:04 2023 +0100

Added user option for enabling QSO end time logging

commit 36d9a95
Merge: 54d5bb5 352931b
Author: phl0 git@xxx.de
Date: Wed Nov 1 12:18:39 2023 +0100

Merge branch 'dev' into qsoTime

commit 54d5bb5
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:14:58 2023 +0200

start/end times for other languages

commit c5f6bb0
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:14:42 2023 +0200

Hide end time if only differs in seconds as we only display minutes
anyway ...

commit d519d88
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:14:29 2023 +0200

use start as end time if end is not set separately

commit f2588ad
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:13:43 2023 +0200

reset timers on form reset

commit 2b7ee4e
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:13:27 2023 +0200

Strip seconds from session time variable

commit e0c35aa
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:13:11 2023 +0200

Adapt contest logging

commit 5368ef2
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:12:50 2023 +0200

Make date field a little smaller

commit ad2d7e7
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:12:30 2023 +0200

Add button to reset start time

commit f56e031
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:11:09 2023 +0200

Copy start to end time on focus out

commit b741d04
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:10:45 2023 +0200

Only min and sec for post QSO template

commit 77314ed
Author: phl0 git@xxx.de
Date: Fri Oct 27 10:08:49 2023 +0200

Basics for QSO end time logging