changing .png icons to .svg icons

[olumolu]

the icons has been developed by https://github.com/lessload/openwrt-icon-minimal/tree/main lessload

[stokito]

This should be squashed to one commit. The commit should start from a prefix luci-base: .
Links to this files also should be changed.
It looks like you made all from the GitHub interface but unfortunately here it's needed to clone code and edit it.
Also if you create a PR then you'll need to mention an issue like Fixes: #7645.
I asked on a forum if the author is not against to use his icons.

[lessload]

you can use it , the original all icon was from https://pictogrammers.com/library/mdi/

[lessload]

@olumolu

Error: Pull requests should not be from your 'main' or 'master' branch.