Javadoc templates should escape/encode rendered data

[IgnatBeresnev]

Dokka's Javadoc format uses HTML templates and maps to set page data, like in the following snippet from JavadocContentToTemplateMapTranslator:

fun templateMapForDeprecatedPage(node: DeprecatedPage): TemplateMap =
    mapOf(
        "id" to node.name,
        "title" to "Deprecated",
        "kind" to "deprecated",
        "sections" to node.elements.toList().sortedBy { (section, _) -> section.getPosition() }
            .map { (s, e) -> templateMapForDeprecatedPageSection(s, e) }
    )

As can be seen, the data used for values is used as is, whatever is returned from the method/property being called, which can lead to bug such as #2803 in case there's an internal mistake.

The data should be properly escaped/encoded, including the links (see #2813)

[TWiStErRob]

Note: the problem is not in the model creation, it's in the view itself. See the .korte files ideally there would be a filter like: {{ pathToRoot|urlEncode|htmlAttribute }} as shown at https://docs.korge.org/korte/filters/