perf/fix: externalize images to WP media; normalize Astra leaks; full-width

Plugin (1.8.2):
- remove all bundled raster images (~9.3MB) from assets/img; hero + single
  hero figure now come from the WP Media Library (Settings), shortcode args
  ([viator_hero image_id]), or the vc_testimonials filter — rendered responsive
- vc_hero_image_source() prefers an attachment ID (srcset); listing/hero use it
- settings: store hero_image_id + single_hero_figure_id (media pickers)
- enqueue at priority 20 + depend on astra-theme-css so our CSS wins ties
- stronger Astra overrides (!important): kill page-builder article top padding
  (gap above hero), force full-bleed containers, guard horizontal scroll
- normalize theme leaks inside .vc-app: no link underline, no list bullets
  (with prose exceptions for the tour Overview); gradient hero fallback

Theme: normalize .hoho link/list leaks; rebuild installable ZIP.
Also: move optimized originals to /removed-images/; ship viator-collector.zip.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J4hNL1PSHxXbu94SCenpKj

viator-collector/includes/helpers.php

@@ -138,6 +138,34 @@ function vc_hero_image_url() {
 	return apply_filters( 'vc_hero_image_url', $url );
 }
 
+/**
+ * Hero image *source* for the current view: an attachment ID when available
+ * (so it can be rendered responsively), otherwise a URL. Resolution order:
+ *   1. On a term archive, that term's own image.
+ *   2. The "Hero image" chosen in Settings (attachment ID preferred).
+ *   3. Nothing.
+ *
+ * @return int|string Attachment ID, image URL, or '' .
+ */
+function vc_hero_image_source() {
+	if ( is_tax( array( 'viator_destination', 'viator_tag', 'viator_category' ) ) ) {
+		$term = get_queried_object();
+		if ( $term && ! is_wp_error( $term ) ) {
+			$url = vc_term_image_url( $term->term_id, $term->taxonomy );
+			if ( $url ) {
+				return apply_filters( 'vc_hero_image_source', $url );
+			}
+		}
+	}
+
+	$id = (int) vc_get_option( 'hero_image_id', 0 );
+	if ( $id ) {
+		return apply_filters( 'vc_hero_image_source', $id );
+	}
+
+	return apply_filters( 'vc_hero_image_source', (string) vc_get_option( 'hero_image', '' ) );
+}
+
 function vc_term_image_url( $term_id, $taxonomy = '' ) {
 	$term_id = absint( $term_id );
 	if ( ! $term_id ) {