fix(chat): better loading feedback (#2750)

* fix(chat): better loading feedback

* fix(chat): missing loading aria role

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>

* refactor(chat): use vscode loading for more consistency

---------

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>

webview-ui/src/components/common/CodeAccordian.tsx

@@ -2,6 +2,7 @@ import { memo, useMemo } from "react"
 import { getLanguageFromPath } from "@src/utils/getLanguageFromPath"
 import CodeBlock, { CODE_BLOCK_BG_COLOR } from "./CodeBlock"
 import { ToolProgressStatus } from "@roo/shared/ExtensionMessage"
+import { VSCodeProgressRing } from "@vscode/webview-ui-toolkit/react"
 
 interface CodeAccordianProps {
 	code?: string
@@ -69,7 +70,9 @@ const CodeAccordian = ({
 						MozUserSelect: "none",
 						msUserSelect: "none",
 					}}
+					className={`${isLoading ? "animate-pulse" : ""}`}
 					onClick={isLoading ? undefined : onToggleExpand}>
+					{isLoading && <VSCodeProgressRing className="size-3 mr-2" />}
 					{isFeedback || isConsoleLogs ? (
 						<div style={{ display: "flex", alignItems: "center" }}>
 							<span