simplify tripletap extraction process

[jwoos]

The process for the tripletap extraction was way overcomplicated:

Previous:

1. create target directory
2. unzip the archive
3. try to find the extracted directory by hard coded name, falling back to find | head
4. head in busybox is wrong anyways, it should be head -n1
5. copy over the files from the extracted source directory to target
6. clean up source

New:

1. just unzip with -d directly into the target directory

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This also fixes two issues:

1. the aforementioned head -1 issue (it should be head -n1)
2. the directory name was no longer xovi-tripletap-main, it was xovi-tripletap-0.3. Now it doesn't matter what it changes to

Also it's much simpler :)

[rmitchellscott]

I really don't know why this project doesn't just use my tripletap installer...

[jwoos]

I don't have much context because I'm just a user who ran into this issue but it seems like something about ethernet fix being installed alongside it

https://github.com/wowitsjack/freeMarkable/blob/master/resources/remarkable_xovi_installer/services/installation_service.py#L1090