[ENHANCEMENT] Ability to sort search results by discovery time

### 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

# Current behavior

Currently, when searching for a package (i.e. Syncthing), the search result UI will refresh every time a new result is found and shuffle the entries.

This can be very annoying when search discovers new entries for a long time, even though the package you were looking for has already been found. This can result in the wanted package jumping around the screen for some time.

# Proposed behavior

Add an option "Sort by find/discovery time" that always appends new search results at the end of the list, so the result order and position is always the same.

### Describe how this improvement could help users.

It's just a nice feature to have and makes search a bit more user friendly.