Feature: Truncate kubectl context using variables

[rodrigobdz]

Truncate kubectl output using environment variables.

Description

Requires the following variables to be defined.

Example variable definition:

set -x tide_kubectl_truncation_strategy l
set -x tide_kubectl_truncation_length 31

Motivation and Context

My kubectl context is too large and almost fills an entire line.

Same approach as in: https://github.com/IlanCosman/tide/blob/447945d2cff8f70d5c791dd4eec8b322d37798dd/functions/_tide_item_git.fish#L2

Closes #

Screenshots (if appropriate)

How Has This Been Tested

I tested the changes by modifying the file $HOME/.config/fish/functions/_tide_item_kubectl.fish.

• [x] I have tested using Linux.
• [x] I have tested using MacOS.

Checklist

• [x] I am ready to update the wiki accordingly.
• [ ] I have updated the tests accordingly.

[olujicz]

I can confirm that this is working on Linux.

[rodrigobdz]

Thanks @olujicz. I checked the Linux test accordingly.