Add support for Calculate Linux

[PepperJared]

Calculate Linux is based on Gentoo with some precompiled binaries so users don't have to compile everything from the get go. It's a good system and Brave is the best which is unsupported yet.

Maybe y'all should just create brave.appimage for libc and musl.

Linux 6.12.16-calculate #1 SMP PREEMPT_DYNAMIC Fri May 23 13:31:45 UTC 2025 x86_64 GNU/Linux

#------------------------------------------------------------------------------

Modified Calculate Utilities 3.7.6.8

Processed template files:

#------------------------------------------------------------------------------
NAME="Calculate"
ID="calculate"
PRETTY_NAME="Calculate Linux Desktop Cinnamon"
ANSI_COLOR="1;32"
HOME_URL="https://www.calculate-linux.org"
SUPPORT_URL="https://chat.calculate-linux.org"
BUG_REPORT_URL="https://forum.calculate-linux.org"
VERSION_ID="2.17"
ID_LIKE="gentoo calculate"
BUILD_ID=20250622
DOCUMENTATION_URL="https://wiki.calculate-linux.org"
VARIANT_ID=desktop

[fmarier]

Gentoo is covered by #14, but since Calculate is slightly different from Gentoo (precompiled binaries), then it makes sense to have a separate issue for it.

[fmarier]

@PepperJared Is Chromium already available on Calculate Linux?