Allow configuration of "Ask a question" and "reply to question"

[pjhul]

Original issue: https://github.com/PostHog/squeak-react/issues/55

I wanted to use squeak to add a discussion to a page on my site... But it isn't Q&A

Would be awesome to init squeak.js on the page with what I'd like it to say. In this case, something like "what are you a signpost for?" and "reply to this"

[pjhul]

So you'd have squeak.js in the page with something like

<script>
	(function() {
		window.squeak = {
			supabase: {
				apiKey: "blah"
				url: "https://somewhere.supabase.co",
			},
			apiHost: "https://squeak.cloud",
			organizationId: "a-uuid",
                         // new config here
			askLabel: "I'm a signpost for...",
			replyLabel: "comment on this"
		};
		var d = document,
			s = d.createElement("script");
		s.src = "//somewhere.cloudfront.net/squeak.js";
		(d.head || d.body).appendChild(s);
	})();