Filtering by "Show files like" when using AI Assisted Coding

[dohdohblah]

Is your feature request related to a problem? Please describe.
When coding documents or files normally, there's an easy way to filter using "Show files like" like in the screenshot below. I have one title and one main text of each case (news article) like this:

001_text
001_title
002_text
002_title
...
600_text
600_title
601_text
601_title

However, there is no way to do this when filtering the data in the AI coding menu.

I also tried to assign a file attribute to label my files title = 1 and text = 2 so I could use attribute filtering in the AI coding window but I get an error message.

File "qualcoder\ai_search_dialog.py", line 356, in select_attributes

AttributeError: 'Ui_Dialog_AiSearch' object has no attribute 'splitter'

Describe the solution you'd like
I would like to be able to filter files in the AI coding menu using "show files like", or have the filter by attribute error fixed.

[kaixxx]

OK, I can fix the error in the attribute selection quickly.
Adding an option to filter by name ("select files like") is an interesting idea, but may take a little longer to implement.

[kaixxx]

OK, I have fixed the error in the attribute selection: 4f8dbe0

@ccbogel: I hope it's OK if I push such small fixes directly to master.

[ccbogel]

@kaixxx yes, sure.