new icon: zsh (original, original-wordmark, plain, plain-wordmark, line, line-wordmark)

[canaleal]

Double check these details before you open a PR

• PR does not match another non-stale PR currently opened
• PR name matches the format new icon: Icon name (versions separated by comma). More details here
• PR's base is the develop branch.
• Your icons are inside a folder as seen here
• SVG matches the standards laid out here
• A new object is added in the devicon.json file as seen here

This PR closes #1717

Link to prove your SVG is correct and up-to-date.

• ZSH Website
• ZSH Github Official Branding

ZSH uses and orange and black color scheme for the original SVGs. As per the ZSH official branding guide, black should be used for a flat plain icon instead of orange.

The logo with the ZSH is the original, whereas the logo with ZSHELL is the wordmark as shown in the guide.

[weh]

only some really minor changes 👍

[github-actions]

Hi!

I'm the check-bot and we have some issues with your PR:

devicon.json is not sorted correctly.
Please make sure that your icon is added in the `devicon.json` file at the correct alphabetic position
as seen here: https://github.com/devicons/devicon/wiki/Updating-%60devicon.json%60

Check our CONTRIBUTING guide for more details regarding these errors.

Please address these issues. When you update this PR, I will check your SVGs again.

Thanks for your help,
SVG-Checker Bot 😄

[canaleal]

Very minor artifacts on the line logo version that have to be fixed:

[github-actions]

Hi!

I'm the check-bot and we have some issues with your PR:

devicon.json is not sorted correctly.
Please make sure that your icon is added in the `devicon.json` file at the correct alphabetic position
as seen here: https://github.com/devicons/devicon/wiki/Updating-%60devicon.json%60

Check our CONTRIBUTING guide for more details regarding these errors.

Please address these issues. When you update this PR, I will check your SVGs again.

Thanks for your help,
SVG-Checker Bot 😄