i2p console design - migrate pngs to svgs and replace as many as possible with icons from feather

[alex_wykoff]

As part of the redesign effort of Trac #738 a first step is to update the icons.

There are a LOT of icons in the console and connected apps spread across 4 themes.

Trac #2272 will reduce the themes.

Per theme, the CSS is pretty massive (>3k lines and at least 3 files) and the use of id vs class differs considerably for various UI elements. This must be taken into consideration when it comes to icon replacement.

The simplest approach is:

1. to convert the current set of pngs to svgs and update references in code to point to svgs
2. to replace svgs of old icons with ones from ​https://feathericons.com/ and construct new icons as-needed

[sadie]

This sounds like the right path to getting this done. With deadline
already looming for .39, can we have a schedule for updates ?

[sadie]

Many of the icons have ben updated as of .40 with the Feather icon set. Remaining icons will be updated for .41

[sadie]

icon updates still in progress for .42 - will focus on updating colours to match new logo where needed as well as updating logo in light theme.

[sadie]

small updates to some buttons, updated logos in .42