[ICON REQUEST]: Tailscale VPN

### I have searched through the issues and didn't find my problem.

- [x] Confirm

### About the icon

Tailscale's commercial wireguard overlay vpn is gaining traction in both open source and enterprise environments. I have created an svg using line shading, but I am unsure if it qualifies for the standards you have for simplified svg's.

### Links and sources

https://tailscale.com/why-tailscale

### Icon links and previews

#### tailscale

I already created this svg using diagonal lines to imitate the gray shading of the real icon

And here is how it looks in a terminal with a dark background and light text (I patched it manually into a nerdfont with FontForge)

### Additional information

If this seems viable and the diagonal lines aren't problematic I can prepare a pull request with the 6 versions.