[IMPROVEMENT] (Please don't auto open Explorer on every bundle save 😢)

### Please confirm these before moving forward.

- [x] I have searched for my feature proposal and have not found a work-in-progress/duplicate/resolved/discarded issue.
- [x] This improvement refers to an existing feature. If you want to suggest a new feature, please use [this template](https://github.com/marticliment/WingetUI/issues/new?assignees=marticliment&labels=new-feature&projects=&template=feature-request.yml&title=%5BFEATURE+REQUEST%5D+%28Enter+your+description+here%29).
- [x] This improvement is not a bug. If you want to report a bug, please use [this template](https://github.com/marticliment/WingetUI/issues/new?assignees=marticliment&labels=bug&projects=&template=bug-issue.yml&title=%5BBUG%5D+%28Enter+your+description+here%29).

### Describe the improvement

It's a really small issue but, for me at least, I find it super annoying... I can't stand that UniGetUI ALWAYS opens an Explorer window EVERY time a bundle saves. Quite honestly, I've literally just selected a place to save the bundle in the intervening 2.3 seconds... If I can't remember where I just saved it I can always just start the process again in order to see the default save location.

Generally I would find this behavior annoying, but it's especially irksome for me as I don't even use Explorer. I have an Explorer replacement which is even registered in the system as the default. As an aside, I find that about half the programs I use respect this, and half force opening Explorer directly... Unrelated but you can see why why it might be bothersome.

Here's what I would love to see:

1. Implement a setting where I can turn on/off the option to open the location when a bundle is saved
2. Respect the default setting in the OS regarding which application is registered as the 'Explorer' of choice

I'm not sure what's required to open a location in the default registered app, but various programs on my machine do it correctly, whilst others do not, so I know it can be done.

As a general FYI, I **absolutely** want to temper the above with the unequivocal assertion that UniGetUI has **_ABSOLUTELY CHNAGED MY LIFE FOREVER AND WILL NOW CONTINUE FROM THIS DAY FORTH TO BE THE ONE SINGLE APP I WILL NEVER DO WITHOUT_**. I cannot over-emphasize how amazing this app is - for building new systems or even for simple maintenance, I honestly think this app is a game changer, and I've been building systems since 1998. I realize it's not an image deployment tool, so would be usurped at an enterprise level, but anything from a one-man-band up to an SME would find UniGetUI revolutionary. I just wanted to give that feedback and thank you so much for your hard work and dilligence. ❤️ I do really think this program is amazing. Thank you.

### Describe how this improvement could help users

I see it might:

1. Provide a minor productivity boost (through less distraction)
2. Integrate more seamlessly with a user's workflow (by respecting default app choices)