The RSS icon on the website is visibly low resolution. This proposed change adds a high resolution version of the icon and replaces it across the website.
The new icon is double the size. Because there are instances where the icon's "physical" size cannot be changed (because it's used in a `list-style-image` CSS property) an additional version of the icon is added so that the layout of those is not affected, but the asset's quality is still improved.
The icon is renamed from ico_rss.png to rss_icon.png since replacing an image file without renaming it was causing preview issues, and since the new name is a slightly better one.
| Before | After |
|--------------|--------------|
| {F87230767} | {F87230771} |
(note that the before/after also includes the second change in this stack)