DIS-231 Add notification to Koha exporter if offline mode is enabled

[lathomas64]

to test:

• put aspen in offline mode: https://help.aspendiscovery.org/help/admin/SystemAdministration#Cell-1804-PanelBody
• enter the adb shell and run the command aspen_koha_import
• you should see a line in the output about the ILS being in offline mode
• log into aspen and navigate to the ILS export log
• the same note about the ILS being in offline mode should appear in the latest entry here as well.

ticket link for convenience: https://aspen-discovery.atlassian.net/browse/DIS-231

added a log note that the exporter was quitting due to being in offline mode and a call to save the logEntry notes so they everything up to that point is actually saved in the log.

[mdnoble73]

@lathomas64 can you update release notes please.

[lathomas64]

@mdnoble73 where would you like me to do that? I included a change to the 25.02.00.MD in this pull request is there somewhere else I should also update?

[mdnoble73]

In the release notes you currently have:

//chloe
//imani
- added a note to KohaExportMain when it tries to run in offline Mode and attempt to save the log before exiting
### WebBuilder Updates
- Fixed an issue preventing administrators from saving a 'URL to link image to' from the 'WebBuilder Portal Cells' page. (*CZ*)

Instead make it

//imani
### Indexing Updates
- Added a note to KohaExportMain when it tries to run in offline Mode and attempt to save the log before exiting. (DIS-231) (*IT*)

//chloe
### WebBuilder Updates
- Fixed an issue preventing administrators from saving a 'URL to link image to' from the 'WebBuilder Portal Cells' page. (*CZ*)

Also add your name and initials at the bottom.
That will separate your work from Chloe's work and make merges easier.

More information about how to update release notes is available here: https://dev.aspendiscovery.org/release-notes

[lathomas64]

I am thinking after looking at the other exporters I want to pull this out into a common file instead actually so they can all call the same function.