[Functional] Fixes cloud failures on TSVB markdown (#77158) (#78901)

* [TSVB] Remove the char by char typing on markodown

* revert

* Add the markdown to be computed immediately and give some time to compute it

* Add retry to locate TSVB tabs

test/functional/page_objects/visual_builder_page.ts

@@ -58,7 +58,10 @@ export function VisualBuilderPageProvider({ getService, getPageObjects }: FtrPro
     }
 
     public async checkTabIsLoaded(testSubj: string, name: string) {
-      const isPresent = await testSubjects.exists(testSubj, { timeout: 10000 });
+      let isPresent = false;
+      await retry.try(async () => {
+        isPresent = await testSubjects.exists(testSubj, { timeout: 20000 });
+      });
       if (!isPresent) {
         throw new Error(`TSVB ${name} tab is not loaded`);
       }
@@ -117,8 +120,8 @@ export function VisualBuilderPageProvider({ getService, getPageObjects }: FtrPro
     public async enterMarkdown(markdown: string) {
       const input = await find.byCssSelector('.tvbMarkdownEditor__editor textarea');
       await this.clearMarkdown();
-      await input.type(markdown, { charByChar: true });
-      await PageObjects.visChart.waitForVisualizationRenderingStabilized();
+      await input.type(markdown);
+      await PageObjects.common.sleep(3000);
     }
 
     public async clearMarkdown() {