innerHTML infotip

[dbauszus-glx]

We do not want to use innerHTML within the mapp library if this can be prevented.

The infotip method should accept and check for a HTMLElement content.

A console.warning should be made if the content is not provided as HTMLElement, eg. from a plugin infotip method.

If provided as a HTMLElement this can bedirectly spliced into the node.

infotip.node = mapp.utils.html.node`<div class="infotip box-shadow">${content}`

In the featureHover.mjs method the response.label provided to the infotip method must be turned into a HTMLElement to prevent the warning from the core method.