Favicons are low resolution on rewards panel and contribution table

[srirambv]

Description

Rewards panel shows favicons which are pixelated needs to have a high resolution icons

Steps to Reproduce

1. Enable Rewards
2. Add funds
3. Visit any site and click the rewards button, see pixelated icons and close it immediately

Actual result:

Expected result:

Should show proper icons

Reproduces how often:

Easy

Brave version (chrome://version info)

Brave	0.55.14 Chromium: 70.0.3538.54 (Official Build) beta(64-bit)
Revision	4f8e578b6680574714e9ed3bb9f02922b4dde40d-refs/branch-heads/3538@{#937}
OS	Linux

Reproducible on current release:

• Does it reproduce on brave-browser dev/beta builds?
  Yes
• Does it reproduce on browser-laptop?
  No

Website problems only:

• Does the issue resolve itself when disabling Brave Shields?
• Is the issue reproducible on the latest version of Chrome?

Additional Information

[srirambv]

Even contribution table has low resolution icons

[NejcZdovc]

we get this icons from favicon store (chromium has control over it), will try to bump size that we are requesting

[srirambv]

@NejcZdovc we might need to bump this one. Looks awfully bad for some sites which has small icons in site favicon

[jonathansampson]

This issue impacts our New Tab Page too. For example, consider this icon: brave://favicon/size/64@1x/http://try.bravesoftware.com/v1/

[NejcZdovc]

agree, let's go with 64@1x

[jonathansampson]

@NejcZdovc Does 64@1x look good on a high-density display? Or would 128 be more preferable?

[NejcZdovc]

I would go with 64 for now and we can always update if needed

[NejcZdovc]

Note that if site provides favicon only in resolution 32x32 like pia we can't do anything really about it. It's on sites to provide good resolution