1.2 search action

[PaLaMuNDeR]

feat: added search action to potential actions list

e.g.

"potentialAction": [{
			"@type": "SearchAction",
			"target": "https://example.org/search?&query={query}",
			"query": "required"
		}]

[PaLaMuNDeR]

This branch is depending on the graph based structure of branch https://github.com/PaLaMuNDeR/wagtail-seo/tree/1_1_graph_structure

[vsalvino]

Closing this - if you'd like to re-open, please rebase it against the main branch, and remove commented out code, etc. Thanks!