Issue/11760 reader empty view ui

[zwarm]

Fixes #11760
This PR changes the Reader UI for empty views on the Following tab and the Followed Site tabs. The copy has been updated to reflect the requested design changes.

To Test
(A) Light mode

• Log into an account that is not following any sites
• Set app to light mode
• Navigate to the reader tab
• Tab on the Following tab
• The updated empty view should be visible
• Tap on the Manage Tags & Sites Settings Cog
• Tap on the Followed Sites tab
• The updated empty view should be visible

(B) Set app to dark mode and repeat above steps

PR submission checklist:

• I have considered adding unit tests where possible.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[zwarm]

@mbshakti - if you have time, can you take a peek and see if it's what you expected. Thanks.

[peril-wordpress-mobile]

You can test the changes on this Pull Request by downloading the APK here.

[malinajirka]

Thanks @zwarm! I've left a couple of in-code comments. Let me know what you think ;)

[mbshakti]

We discussed this briefly on slack, but there seems to be a weird pixelated edge on the illustration. I increased the stroke width on it and exported a new illustration, hopefully this helps!

• new illustration

• dark mode

also per @malinajirka's comment, I've updated the colors in the illustration to make sure they're from our palette. Here's the color specifications. Thanks a lot @zwarm

[zwarm]

Updated screenshots with vector drawables adjusted.

Light	Dark

[mbshakti]

Thanks so much @zwarm!

[malinajirka]

Thanks @zwarm! I've tested the app and it looks awesome;). The code looks good. I think this PR is ready to be merged as soon as we receive a reply for the question regarding the colors - related post paqN3M-1N-p2. I personally like your approach and it's an approach I used in other apps (before dark mode).