feat: caching, optimization, legal pages & footer

- WP Super Cache enabled (PHP mode, gzip, Nginx compatible)
- Autoptimize: CSS/HTML minification + deferred JS + Google Fonts optimization
- Cookie Notice: GDPR/LOPD banner styled with brand colors (navy/burgundy/gold)
- Legal pages: Aviso Legal, Política de Privacidad, Política de Cookies (ES)
- MU-plugin: custom footer with legal links + Cloud Host credit
- Footer: copyright, legal nav, Hosted & Maintained by Cloud Host (cloudhost.es)
- Security: X-Frame-Options, X-Content-Type, Referrer-Policy headers
- Security: XML-RPC disabled, REST user enumeration blocked
- Performance: emoji scripts removed, post revisions limited to 3

wp-content/plugins/autoptimize/classes/external/js/unslider-dots.css

@@ -0,0 +1,33 @@
+/**
+ *   Here's where everything gets included. You don't need
+ *   to change anything here, and doing so might break
+ *   stuff. Here be dragons and all that.
+ */
+/**
+ *   Default variables
+ *
+ *   While these can be set with JavaScript, it's probably
+ *   better and faster to just set them here, compile to
+ *   CSS and include that instead to use some of that
+ *   hardware-accelerated goodness.
+ */
+.unslider-nav ol {
+  list-style: none;
+  text-align: center;
+}
+.unslider-nav ol li {
+  display: inline-block;
+  width: 6px;
+  height: 6px;
+  margin: 0 4px;
+  background: transparent;
+  border-radius: 5px;
+  overflow: hidden;
+  text-indent: -999em;
+  border: 2px solid #fff;
+  cursor: pointer;
+}
+.unslider-nav ol li.unslider-active {
+  background: #fff;
+  cursor: default;
+}