Materialdesign: Card Minus

[drasque]

I have:

• [x] [Searched all issues](https://github.com/Templarian/MaterialDesign/issues) to make sure there isn't a request for this icon.
• [x] [Searched the current library](https://materialdesignicons.com/) to make sure the icon doesn't exist.
• [x] Only requested a single icon (or a few near-identical ones) in this issue.

Usage

This is just an opposite to the card-plus and card-plus-outline icons. Seems natural and intuitive there should be minus versions of these icons.

Examples

Same as the card-plus and card-plus-outline icons but with a minus (-) instead of a plus (+)

[Templarian]

Good catch, not sure how that got missed. card-remove / card-remove-outline also needs to be added.

[Xenomorph99]

I went ahead and created the minus, remove, and off variants for the card and card-outline icons. Additionally, I updated the card-plus-outline icon to match. The card-plus icon already matches, so doesn't need to be updated.

card-modifiers.zip

[goyney]

There were all added, except card-plus-outline which already existed.

[drasque]

thx team!