Fenix: Grid view for tabs

[vesta0]

User Story

• As a user, I want to have the option to see my tabs in a way that provides a more visual view and larger thumbnails, so I can find the tabs that I am looking for faster.

Acceptance Criteria

• I can choose to view tabs in a grid view

[Poopooracoocoo]

also see #13098

[gabrielluong]

https://www.figma.com/file/luMaQYjwiMtQM5xQ30P9yP/Tabs?node-id=2%3A0

[gabrielluong]

Note: this is hidden behind a feature flag in the secret menu. There are follow up issues listed in https://github.com/mozilla-mobile/fenix/projects/42#column-11017543 to align with the design. I think for the purposes of QA we want to focus on testing the functionality of the grid view and the tabs setting.

[abhijitvalluri]

Interesting stuff! I am glad I inspired you and thanks for implementing this into official Firefox as well. I will keep track of the progress here as it will effect the fork as well (such as conflicts and also potentially reusing official implementation in place of my version in the fork).

[gabrielluong]

Interesting stuff! I am glad I inspired you and thanks for implementing this into official Firefox as well. I will keep track of the progress here as it will effect the fork as well (such as conflicts and also potentially reusing official implementation in place of my version in the fork).

@abhijitvalluri From the team, I want to thank you for your help! I am also sorry that I messed up the co-author syntax in my commit for the grid implementation in Part 3.

[softvision-miralobontiu]

Verified that the grid view for tabs is available after enabling the secret menu.
Environment:

• 10/12 Nightly build,
• Samsung Galaxy Note 8 (Android 9), Google Pixel (Android 10), HTC 10 (Android 8), Sony Xperia Z5 Premium (Android 7.1.1), and Samsung Galaxy Tab A6 (Android 5.1.1).