Combusto 1.4.0: town pages explain themselves, and the site finally links together

Combusto 1.4.0 is the biggest content update since launch.

What's new

• Every town page now opens with a short, real introduction (station count, town, province, official source) and a visible FAQ, instead of just the price table on its own.
• New pages for every autonomous community and every major fuel brand, each with its own cheapest-price ranking. A sidebar on town, province and home pages links to them, plus the most-searched towns — and it reacts instantly when you switch fuel, with no extra requests.
• On the home page, the national cheapest-price highlight and "most searched towns" are now front and center until you have your own favourites or a "nearby" search on screen — then they quietly move to the sidebar as background info.
• Combusto now has its own blog, with editorial articles written and published from Studio Apps Manager. Linked from the footer and from the sidebar's "From the blog" section.

Fixes

• The fuel selector in the header showed "barato" (Spanish for "cheap") on all four options instead of each fuel's actual name.
• On the home page, removing your last saved favourite town used to leave the sidebar highlight stuck out of sight instead of bringing it back to the main content.