fix(ui): metadata recall fixes

[psychedelicious]

Summary

Two metadata recall fixes:

• Fallback to recalling models by name, base and type when the model's key no longer exists. This allows models that were installed, deleted, and re-installed with the same name to be recalled.
• Set the prompt concat flag correctly when recalling prompts.

Related Issues / Discussions

Closes #6478

QA Instructions

Test model recall:

• Generate w/ whatever model - can be main, LoRA, whatever
• Note the model's name
• Delete the model
• Reinstall the model
• Ensure the reinstalled model has the same name as you noted earlier
• Check metadata for the image, it should show the model and let you recall it

Test prompt concat:

• Generate an image with concat enabled
• Disable concat
• Recall prompts/all - concat should enable
• Generate an image with concat disabled and with style prompts that are different from the main prompts
• Enable concat
• Recall prompts/all - concat should disable

Merge Plan

n/a

Checklist

• The PR has a short but descriptive title, suitable for a changelog
• Tests added / updated (if applicable)
• Documentation added / updated (if applicable)