Update "bot" icon

[gnprice]

When a message was sent by a bot, we put an icon by the sender's name to indicate it's a bot.

In the web app the icon we use was recently redesigned:

• https://github.com/zulip/zulip/pull/31673
• https://chat.zulip.org/#narrow/stream/101-design/topic/notification.20bot.20icon/near/1918735

to a friendlier-looking "bot" face with one antenna instead of two antennas. We should update to the new one-antenna icon.

Reported by @alexmv in chat: https://chat.zulip.org/#narrow/stream/48-mobile/topic/Bot.20icon.20asset.20needs.20update/near/1953361

[fombalang]

Hi @gnprice I would like to work on this issue, please.

[gnprice]

Sure, please go ahead.

[fombalang]

Alright!

[fombalang]

Hello I have updated the bot icon.

Before I send a PR for this, I would like to verify if a change like this would require that tests be made or updated? Seeing as I only updated the icon SVG file and ran the tools/icons/build-icon-font command without changing any Dart code?

Thank you

[gnprice]

Cool ­— please go ahead and send the PR. This change will be fine without tests.

In general if you have a change that you think may not need tests, I recommend sending the PR without tests but then calling that question out clearly in the PR description. That helps speed things along if reviewers agree that tests aren't needed. It also means reviewers can see the rest of your changes, which can help answer the question of whether tests are needed.

[fombalang]

Okay, Understood