Fix clear button not including select inputs

Author: woefe

src/components/api-request.js

@@ -692,7 +692,7 @@ export default class ApiRequest extends LitElement {
 
   onClearRequestData(e) {
     const requestPanelEl = e.target.closest('.request-panel');
-    const requestPanelInputEls = [...requestPanelEl.querySelectorAll('input, tag-input, textarea:not(.is-hidden)')];
+    const requestPanelInputEls = [...requestPanelEl.querySelectorAll('input, select, tag-input, textarea:not(.is-hidden)')];
     requestPanelInputEls.forEach((el) => { el.value = ''; });
 
     const event = { bubbles: true, composed: true, detail: { explorerLocation: this.elementId, operation: { method: this.method, path: this.path }, type: 'RequestCleared' } };