[Page Template Conversion Tool] Choose Editable template to convert to in search results

There are cases when a static template can be converted to various types of editable templates, it would be great to be able to choose the editable template to convert to.
There isn't necessarily a 1 to 1 mapping between static and editable templates.

Start by locating the Page Template Conversion Tool and its search-results flow; the issue names no files or tests. Determine how static templates map to editable templates and define the selection behavior for cases with multiple valid targets. Done means search results allow choosing the intended editable template instead of assuming a one-to-one mapping.

Written by the indexing model from the issue text.