Use a textarea for the selector

Author: sirreal

html-api-debugger/interactivity.php

@@ -151,7 +151,7 @@ class="context-html"
 				<label>Show invisible <input type="checkbox" data-wp-bind--checked="state.showInvisible" data-wp-on-async--input="handleShowInvisibleClick"></label>
 				<span><label>Show virtual <input type="checkbox" data-wp-bind--checked="state.showVirtual" data-wp-on-async--input="handleShowVirtualClick"></label></span>
 				<div>
-					<label>CSS Selectors <input placeholder="CSS selector: .my-class" data-wp-on-async--input="handleSelectorChange"></label>
+					<label>CSS Selectors <textarea placeholder="CSS selector: .my-class" data-wp-on-async--input="handleSelectorChange"></textarea></label>
 					<p data-wp-bind--hidden="!state.selectorErrorMessage" data-wp-text="state.selectorErrorMessage" class="error-holder"></p>
 				</div>
 			</div>