SYNC: fixed e2e tests + new form cell view test

packages/web/src/tabpanel/TabContent.svelte

@@ -1,3 +1,7 @@
+<script lang="ts" context="module">
+  let tabContentCounter = 0;
+</script>
+
 <script lang="ts">
   import { setContext } from 'svelte';
   import { writable } from 'svelte/store';
@@ -19,7 +23,7 @@
   $: tabFocusedStore.set(tabFocused);
 </script>
 
-<div class:tabVisible>
+<div class:tabVisible data-testid={`TabContent_${tabContentCounter++}`}>
   <svelte:component this={tabComponent} {...$$restProps} {tabid} {tabVisible} {tabFocused} {tabPreviewMode} />
 </div>
 

packages/web/src/tabs/CollectionDataTab.svelte

@@ -221,6 +221,6 @@
     <ToolStripExportButton {quickExportHandlerRef} command="collectionDataGrid.export" />
     <ToolStripCommandButton command="collectionJsonView.expandAll" hideDisabled />
     <ToolStripCommandButton command="collectionJsonView.collapseAll" hideDisabled />
-    <ToolStripCommandButton command="dataGrid.toggleCellDataView" hideDisabled />
+    <ToolStripCommandButton command="dataGrid.toggleCellDataView" hideDisabled data-testid="CollectionDataTab_toggleCellDataView" />
   </svelte:fragment>
 </ToolStripContainer>