Add warning dialog when no prep available in disposal

[CarolineDenis]

Fixes #3297

[maxpatiiuk]

code looks good, but given that interactions code is tricky, buggy, legacy, and doesn't contain tests, I would encourage someone to test the InteractionDialog in all scenarios where it's used after this change

[bronwyncombs]

Same situation as Loans/Gifts

#3936 (review)

[CarolineDenis]

After discussion with @grantfitzsimmons ;

Expected behavior:

• If cat # entered with no prep: warning message below the entry box 'This cat # has no prep' + possibility to continue without prep OR to update it
• If cat # entered with prep: goes to new dialog with prep available / unavailable table
• If cat # entered with prep and cat # without entered: warning message below the entry box 'This cat # has no prep' for the concerned cat # + possibility to continue => continue will bring to the new dialog with prep available / unavailable table with only the cat # containing preps
  @carlosmbe @bronwyncombs
  please consider for testing.
  The tests on this branch should include Add warning dialog when no prep available #3936

[carlosmbe]

Tested Disposal Preps and Loans.

Passed the following:

If cat # entered with no prep: warning message below the entry box 'This cat # has no prep' + possibility to continue without prep OR to update it
If cat # entered with prep: goes to new dialog with prep available / unavailable table
If cat # entered with prep and cat # without entered: warning message below the entry box 'This cat # has no prep' for the concerned cat # + possibility to continue => continue will bring to the new dialog with prep available / unavailable table with only the cat # containing preps