* Refactor the paginator into a ViewComponent.
* Fix inconsistent spacing between paginator items.
* Fix a bug where the sequential paginator generated the wrong next /
previous page links in the <link rel="{next|prev}"> tags in the <head>.
* Always include the final page as a hidden html element, so that it can
be unhidden with custom CSS.
* Make it easier to change the pagination window.
Rework sitemaps to provide more coverage of the site. We want every
important page on the site - including every post, tag, and wiki page -
to be indexed by Google. We do this by generating sitemaps and sitemap
indexes that contain links to every important page on the site.
Bug: when a search timed out we got the generic failbooru page instead
of the search timeout error page.
Cause: when rendering the <link rel="next"> / <link rel="prev"> tags in
the header, we may need to evaluate the search to determine the next or
previous page, but if the searches times out then this fails, which
caused Rails to throw a ActionView::Template::Error because an exception
was thrown while rendering the template.
Likewise, rendering the attributes for the <body> tag could fail with an
ActionView::Template::Error because the call to `current_item.present?`
forced evaluation of the search.
Add <link rel="prev"> and <link rel="next"> tags to the forum topic show
page, the pool show page, and the favgroup show page.
This is kind of useless now since Google hasn't used these tags for SEO
for years ([1]), and userscripts can use `#paginator-next` and
`#paginator-prev` to find the next/prev pages, but whatever.
[1]: https://yoast.com/google-doesnt-use-rel-prev-next-for-pagination
- The types are:
-- Previous: The default and the previously used type
-- Subsequent: Compares against the next version
-- Current: Compares against the current version
- Allow switching between comparison types in index and diff views
-- Have links vary depending upon current comparison type
Fineprint text was variously styled with `.info`, `.tn`, `.hint`, or
`.cost-footnote` css classes. Standardize on `.fineprint` instead. Use
`.hint` only for form hints and `.tn` only for <tn> tags in translation
notes.
Incidentally changes the font size of form hints to 0.8em (was 0.7em)
and the color of fineprint to #888 (was #AAA or #666).
Certain parts of comment rendering triggered sql queries that we didn't
really need to do. Rework things to avoid this.
* Preload comment creators in order to display commenter names with link_to_user.
* Preload comment votes in order to display "undo vote" links. Only preload
votes for members since anonymous users can't vote and don't have "undo
vote" links.
* Rework various conditionals to do the filtering in Ruby so that we
avoid issuing any extra queries in sql.
* Avoid issuing any queries at all when the post doesn't have any
comments (when last_commented_at is blank).
