[UX] Use download folder install path for .temp

[BrettCleary]

Download into a .temp folder in the default install path by default. If the default install path setting is not set, use the config folder as was used previously

---

Use the following Checklist if you have changed something on the Backend or Frontend:

• Tested the feature and it's working on a current and clean install.
• Tested the main App features and they are still working on a current and clean install. (Login, Install, Play, Uninstall, Move games, etc.)
• Created / Updated Tests (If necessary)
• Created / Updated documentation (If necessary)

[nyghtstalker]

Confirmed that a new hyperplay folder is created with a .temp folder inside of it.