Replace all profile fetching methods with IWeb

The previous HTML method is gone due to a page restructure. It was
able to consistently bypass Instagram's blocking.

The IWeb method has a few hundred uses per X time for selfhosters, and
a couple dozen uses per X time for servers. This will likely change in
the future. There is no known way to bypass Instagram's IWeb blocking.

Feel free to look for a way.

Further timeline pages are still blocked. The "next page" button
defaults to not automatically loading when scrolled, since it will
basically never work anyway. Users running personal instances may be
able to get a couple of uses out of it.

src/site/html/static/js/pagination.js

@@ -47,11 +47,14 @@ class NextPage extends FreezeWidth {
 		this.controller = controller
 		this.clicked = false
 		this.nextPageNumber = +this.element.getAttribute("data-page")
+		this.auto = this.element.getAttribute("data-auto")
 		this.attribute("href", "javascript:void(0)")
 		this.event("click", event => this.onClick(event))
 
 		this.observer = new IntersectionObserver(entries => this.onIntersect(entries), {rootMargin: "0px", threshold: intersectionThreshold})
-		this.observer.observe(this.element)
+		if (this.auto !== "off") {
+			this.observer.observe(this.element)
+		}
 	}
 
 	onClick(event) {

src/site/pug/includes/next_page_button.pug

@@ -10,6 +10,7 @@ mixin next_page_button(user, selectedTimeline, url, type)
 				data-username=(user.data.username)
 				data-type=type
 				data-loading-text=ll.next_page_button_loading
+				data-auto=settings.infinite_scroll
 			)#next-page.next-page= ll.next_page_button
 	else
 		div

src/site/pug/settings.pug

@@ -102,9 +102,8 @@ html(dir=ll.meta_direction, lang=settings.language)
 
 					+checkbox("spa", ll.fast_navigation, ll.t_enabled, false)
 
-					+select("infinite_scroll", ll.infinite_scroll, true, [
+					+select("infinite_scroll", ll.infinite_scroll, false, [
 						{value: "normal", text: ll.t_normal},
-						{value: "eager", text: ll.t_eager},
 						{value: "off", text: ll.t_manual}
 					])