Quickstart reader onboarding steps needs some messaging update

[develric]

Internal ref: p1706830673644549?thread_ts=1706821601.141289&cid=C01CW1VMLAF-slack-C01CW1VMLAF

Expected behavior

When going into the reader step of the quickstart, I would expect the messaging to be consistent with the UI

Actual behavior

When going into the reader step of the quickstart, the messaging is not fully consistent with UI changes happened before the Reader IA project and the Reader IA project latests. In more details:

When you go into the Quickstart "Connect with other sites" step

1. The first snackbar messaging has the reader icon not updated

2. The second snackbar messaging reports an older icon and an outdated navigation (“Try selecting Settings :cog: to add topics you like”)

Steps to reproduce the behavior

In the quickstart steps, select "Connect with other sites" and go over the flow to see the snackbar messaging reported above.

Tested on [Pixel 5 Emulator], Android [API 33], JPAndroid / WPAndroid [#20103 at 2ce97ec71e2b3317ed2bc3c115c32647f2eb759d]