[Feature] Button to merge unique existing tag list with scene scraped tag results

[echo6ix]

Is your feature request related to a problem? Please describe.
When scraping scenes with existing tags if the user wants to incorporate any existing tags into the scraped scene tag results their only option is to manually input each of their existing tags into the scraped tag list.

Describe the solution you'd like
Add a merge button, such as a right arrow ➡. The placement would ideally be in the existing tags input group, below the "x" button.

When the merge button is clicked any existing tags that do not exist in the scraped scene tag results are immediately added to the scraped scene tag results input group.

Additional context
Add a tool-tip on the merge button indicating it's purpose, "Merge existing tags with scraped scene tag results"

[gitgiggety]

This would be a nice feature indeed. Shouldn't be too hard to add. But styling / UI wise it's a different story. The X you're mentioning is either an X or a V to select if you want to use the existing or scraped values, and it thus is a big button which you can click. So adding an additional button there isn't really possible. Ideally the button would be placed in between the fields, but that would require more space and on mobile the space is already scarce. What might be some middle ground though is place the button on the row with the label (so in this case "Tags"). There is a lot of room there.

@WithoutPants do you have any opinion on this?

Oh, and same could obviously be added to other fields as well. Or at least performers comes to mind, as that's also a multi select. And not just for scenes but also for images, galleries and performers.

[WithoutPants]

I like this idea. I'd probably add it inline with the multi-select, or between the two fields.