drop zone, and remove beta tag from mraid checker

src/tools/applovinUpload.ts

@@ -460,6 +460,7 @@ ${getToolWebviewStyles()}
 
   uploadBtn.addEventListener('click', () => {
     statusEl.textContent = '';
+    statusEl.classList.remove('is-busy');
     resultsEl.innerHTML = '';
     outputPanel.classList.add('is-hidden');
     if (!selectedPaths.length) {
@@ -467,6 +468,8 @@ ${getToolWebviewStyles()}
       return;
     }
     uploadBtn.disabled = true;
+    statusEl.textContent = 'Uploading...';
+    statusEl.classList.add('is-busy');
     resultItems = [];
     saveAllBtn.disabled = true;
     regenAllBtn.disabled = true;
@@ -504,8 +507,9 @@ ${getToolWebviewStyles()}
       regenAllBtn.disabled = true;
     } else if (m.type === 'status') {
       statusEl.textContent = m.message;
-      statusEl.className = 'status-panel';
+      statusEl.className = 'status-panel is-busy';
     } else if (m.type === 'error') {
+      statusEl.classList.remove('is-busy');
       const div = document.createElement('div');
       div.className = 'err';
       div.textContent = m.message;
@@ -558,6 +562,7 @@ ${getToolWebviewStyles()}
       saveAllBtn.disabled = resultItems.length === 0;
       regenAllBtn.disabled = resultItems.length === 0;
     } else if (m.type === 'done') {
+      statusEl.classList.remove('is-busy');
       statusEl.innerHTML = '<span class="ok">Done.</span>';
       uploadBtn.disabled = false;
     }