Pencil button color in widgets should match message action buttons

[alya]

The color of the "edit" pencil button in polls and todo lists should match the color of the message action buttons, in both light theme and dark theme, both in unhovered and hovered states.

[zulipbot]

Hello @zulip/design members, this issue was labeled with the "design" label, so you may want to check it out!

[josiah-tesfu]

@zulipbot claim

[zulipbot]

@SnehalSrivastava27 This issue cannot be claimed, as someone else is already working on it. Please see our contributor guide for advice on finding an issue to work on. Thanks!

[KUNDAN1334]

if it is not done yet please assign it to me @alya