[FEATURE REQUEST] ability to download more than one file at a time

**Is your feature request related to a problem? Please describe.**
I get frustrated when working with my customers and I need to grab files from them to duplicate their problems so I can solve them. I either need to create a zip file with all of the files and download that or i'm stuck grabbing one file at a time.

**Describe the solution you'd like**
If more than one file is selected, either download them in succession, or create a zip, or 7z or any commonly compressed file type and download that at once using either a hash for the name or the name of the dir they are in as the file name.

**Describe alternatives you've considered**
currently i have to select each name one at a time, and compress them into a file on my own or just download one file at a time. i sometimes run into issues downloading them one at a time because the browser can falsely detect them as harmful because some of the files are .ini files.

The issue names no files, tests, or entry points; trace the existing single-file selection and download flow in the Blazor/.NET application first. Done means multiple selected files can be downloaded together, either successively or as one archive, including files such as .ini files.

Written by the indexing model from the issue text.