Improve messaging.

Author: StevenDufresne

src/wordpress-wasm/example-app.tsx

@@ -97,7 +97,7 @@ async function main() {
 		// Download the theme file
 		const response = cloneResponseMonitorProgress(
 			await fetch('/plugin-proxy?theme=' + preinstallTheme),
-			progress.partialObserver(installThemeProgress - 10, `Installing ${preinstallTheme}`)
+			progress.partialObserver(installThemeProgress - 10, `Installing theme...`)
 		);
 		const themeFile = new File([await response.blob()], preinstallTheme);
 

src/wordpress-wasm/wordpress.html

@@ -333,7 +333,7 @@
           </div>
           <div class="main-content">
             <div class="progress-bar-overlay">
-              <h3 class="progress-bar-overlay-caption"></h3>
+              <h3 class="progress-bar-overlay-caption">Preparing WordPress...</h3>
               <div class="progress-bar-wrapper mode-infinite">
                 <div class="progress-bar is-infinite"></div>
                 <div class="progress-bar is-finite"></div>
@@ -360,7 +360,7 @@ <h3 class="progress-bar-overlay-caption"></h3>
     </script>
     <script type="template" id="seamless-mode">
       <div class="progress-bar-overlay">
-        <h3 class="progress-bar-overlay-caption"></h3>
+        <h3 class="progress-bar-overlay-caption">Preparing WordPress...</h3>
         <div class="progress-bar-wrapper mode-infinite">
           <div class="progress-bar is-infinite"></div>
           <div class="progress-bar is-finite"></div>