docs(web): describe the running dot as the chase master now renders

Master replaced StateDot's ongoing ring with a pixel-art chase, so the
prompt line's run-state description named an indicator that no longer
exists. Same fix in the note, both READMEs, and the test name.

packages/client/ui-primitives/tests/terminal-block.spec.tsx

@@ -174,7 +174,7 @@ describe('TerminalBlock status pill', () => {
 })
 
 describe('TerminalBlock run-state dot', () => {
-  it('shows the spinning ring and its running label while the command runs', () => {
+  it('shows the running chase and its running label while the command runs', () => {
     const view = render(<TerminalBlock command="sleep 5" running />)
     expect(runStateOf(view.container)).toEqual({ state: 'ongoing', label: '运行中' })
   })