Add a rubocop rule to check for prefix on `svg` calls

[gabrielgiroe1]

Context

We were pointed out that if the user adds an svg with the same name as ours, it will override them.

To mitigate that we have moved them to a separate avo directory and are referencing them with the full path.

We'd also want to add a rubocop rule to check for any calls without the avo/ or heroicons/ prefix.

We'll take some help with that.

Related to this issue and this PR: (#2783)