Add option to pick which item to download

[yoshiask]

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Description

Some packages, for example GitHub repos, have multiple versions, and each version has multiple files. Currently, Fluent Store always uses its algorithm to guess which file is most likely the installer for the latest release. However, sometimes users want to download an older version of an app, or the algorithm fails and the user needs to pick manually.

Giving users the option of picking from all available files should make this possible. Note that the current automatic method should be kept as the default.

Alternative solutions

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Relevant Assets

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