revert: remove unsupported tooltip from activity indicator

The VSCode extensions API does not support tooltips for withProgress
view indicators. Confirmed by manual testing that the title property
has no visible effect.

src/core/webview/ActivityIndicator.ts

@@ -32,7 +32,6 @@ export class ActivityIndicator {
 		vscode.window.withProgress(
 			{
 				location: { viewId: ActivityIndicator.VIEW_ID },
-				title: "Roo is working...",
 			},
 			() => {
 				return new Promise<void>((resolve) => {

src/core/webview/__tests__/ActivityIndicator.spec.ts

@@ -36,17 +36,6 @@ describe("ActivityIndicator", () => {
 			)
 		})
 
-		it("should include tooltip text in progress options", () => {
-			indicator.show()
-
-			expect(mockWithProgress).toHaveBeenCalledWith(
-				expect.objectContaining({
-					title: "Roo is working...",
-				}),
-				expect.any(Function),
-			)
-		})
-
 		it("should only call withProgress once when shown multiple times", () => {
 			indicator.show()
 			indicator.show()