fix(clipboard): alt_text in write_html command not being passed with correct argument name

.changes/fix-clipboard-html-write.md

@@ -0,0 +1,5 @@
+---
+clipboard-manager-js: patch
+---
+
+Fix clipboard manager client side api not copying fallback alternative text when calling `writeHtml`. 

plugins/clipboard-manager/guest-js/index.ts

@@ -120,10 +120,10 @@ async function readImage(): Promise<Image> {
  *
  * @since 2.0.0
  */
-async function writeHtml(html: string, altHtml?: string): Promise<void> {
+async function writeHtml(html: string, altText?: string): Promise<void> {
   await invoke('plugin:clipboard-manager|write_html', {
     html,
-    altHtml
+    altText
   })
 }