Preserve JAV title in Tagger

[javstash]

Check if string contains a JAV style code, if so preserve the dash in it.

Need to fix lint and maybe rename parseDate function
Resolves #5644

[WithoutPants]

Lint failure is unrelated and will be fixed by merging from the develop branch. Can you please provide some test scenarios so I can understand what this code change is trying to fix?

[javstash]

This change will preserve the dash in jav codes. For example, when querying a file named AAA-891.mp4 with query mode set to filename in tagger view, the query string will default to aaa-891 instead of aaa 891.