Add check for array key

[OfficialAudite]

This fixes the problem i mentioned for latest wordpress with php 8.3 :)

[OfficialAudite]

The "working" state of acf-editor-palette

21-Oct-2024 09:31:44 UTC] PHP Fatal error:  Uncaught TypeError: Cannot access offset of type array on array in /var/www/html/wp-content/plugins/acf-editor-palette/src/Concerns/Palette.php:48
Stack trace:
#0 /var/www/html/wp-content/plugins/acf-editor-palette/src/Field.php(248): Log1x\AcfEditorPalette\Field->palette(Array)
#1 /var/www/html/wp-includes/class-wp-hook.php(324): Log1x\AcfEditorPalette\Field->validate_value(true, Array, Array, 'acf-block_acf-b...')
#2 /var/www/html/wp-includes/plugin.php(205): WP_Hook->apply_filters(true, Array)
#3 /var/www/html/wp-content/mu-plugins/advanced-custom-fields-pro/includes/validation.php(335): apply_filters('acf/validate_va...', true, Array, Array, 'acf-block_acf-b...')
#4 /var/www/html/wp-content/mu-plugins/advanced-custom-fields-pro/pro/blocks.php(1325): acf_validate_value(Array, Array, 'acf-block_acf-b...')
#5 /var/www/html/wp-content/mu-plugins/advanced-custom-fields-pro/pro/blocks.php(1251): acf_validate_block_from_local_meta('block_acf-block...', Array, false)
#6 /var/www/html/wp-content/mu-plugins/advanced-custom-fields-pro/pro/blocks.php(595): acf_get_block_validation_state(Array, false, false, true)
#7 /var/www/html/wp-content/mu-plugins/advanced-custom-fields-pro/pro/blocks.php(533): acf_rendered_block(Array, '', true, 325, Object(WP_Block))
#8 /var/www/html/wp-includes/class-wp-block.php(463): acf_render_block_callback(Array, '', Object(WP_Block))
#9 /var/www/html/wp-includes/blocks.php(1705): WP_Block->render()
#10 /var/www/html/wp-includes/blocks.php(1743): render_block(Array)
#11 /var/www/html/wp-includes/class-wp-hook.php(324): do_blocks('<!-- wp:acf/her...')
#12 /var/www/html/wp-includes/plugin.php(205): WP_Hook->apply_filters('<!-- wp:acf/her...', Array)
#13 /var/www/html/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php(1865): apply_filters('the_content', '<!-- wp:acf/her...')
#14 /var/www/html/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php(569): WP_REST_Posts_Controller->prepare_item_for_response(Object(WP_Post), Object(WP_REST_Request))
#15 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(1230): WP_REST_Posts_Controller->get_item(Object(WP_REST_Request))
#16 /var/www/html/wp-includes/rest-api/class-wp-rest-server.php(1063): WP_REST_Server->respond_to_request(Object(WP_REST_Request), '/wp/v2/pages/(?...', Array, NULL)
#17 /var/www/html/wp-includes/rest-api.php(555): WP_REST_Server->dispatch(Object(WP_REST_Request))
#18 /var/www/html/wp-includes/rest-api.php(2922): rest_do_request(Object(WP_REST_Request))
#19 [internal function]: rest_preload_api_request(Array, '/wp/v2/pages/32...')
#20 /var/www/html/wp-includes/block-editor.php(750): array_reduce(Array, 'rest_preload_ap...', Array)
#21 /var/www/html/wp-admin/edit-form-blocks.php(77): block_editor_rest_api_preload(Array, Object(WP_Block_Editor_Context))
#22 /var/www/html/wp-admin/post.php(187): require('/var/www/html/w...')
#23 {main}
  thrown in /var/www/html/wp-content/plugins/acf-editor-palette/src/Concerns/Palette.php on line 48

This fixes it 👍🏻