fix: Remove CSS 404 errors and invalid preloads

Remove enqueues of non-existent CSS files (render blocking 404s):
- Remove componente-footer-principal.css from roi_enqueue_header()
- Remove roi_enqueue_social_share_styles() (SocialShareRenderer generates CSS)
- Remove roi_enqueue_footer_contact_assets() (ContactFormRenderer generates CSS)

Fix preloads in performance.php:
- Remove inter-var.woff2 preloads (fonts don't exist, using Poppins)
- Fix fonts.css reference to css-global-fonts.css

Minor: Update contact-form default info_value_color

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

inc/performance.php

@@ -329,19 +329,8 @@ add_filter( 'wp_resource_hints', 'roi_add_resource_hints', 10, 2 );
  * @since 1.0.0
  */
 function roi_preload_critical_resources() {
-	// Preload de fuentes críticas
-	$fonts = array(
-		'inter-var.woff2',
-		'inter-var-italic.woff2',
-	);
-
-	foreach ( $fonts as $font ) {
-		$font_url = get_template_directory_uri() . '/Assets/fonts/' . $font;
-		printf(
-			'<link rel="preload" href="%s" as="font" type="font/woff2" crossorigin="anonymous">' . "\n",
-			esc_url( $font_url )
-		);
-	}
+	// NOTA: Fuentes Poppins se cargan desde Google Fonts (enqueue-scripts.php)
+	// No se necesita preload de fuentes locales
 
 	// Preload del CSS de Bootstrap (crítico para el layout)
 	$bootstrap_css = get_template_directory_uri() . '/Assets/vendor/bootstrap/css/bootstrap.min.css';
@@ -351,7 +340,7 @@ function roi_preload_critical_resources() {
 	);
 
 	// Preload del CSS de fuentes (crítico para evitar FOIT/FOUT)
-	$fonts_css = get_template_directory_uri() . '/Assets/css/fonts.css';
+	$fonts_css = get_template_directory_uri() . '/Assets/css/css-global-fonts.css';
 	printf(
 		'<link rel="preload" href="%s" as="style">' . "\n",
 		esc_url( $fonts_css )