Update site-wide Favicon

[wesley-dean-gsa]

Favicon should be the same as JoinTTS

[wesley-dean-gsa]

https://bnijenhuis.nl/notes/adding-a-favicon-in-eleventy/
https://css-tricks.com/how-to-favicon-in-2021/

[wesley-dean-gsa]

The current site has no reference to any favicons in any of the HTML, nor are there any icon files that I can find in the site source.

[wesley-dean-gsa]

Join's favicon is here: https://join.tts.gsa.gov/favicon.ico
It's 128x128x32b; best case would be to support 32x32, 180x180, 192x192, and 512x512.

[wesley-dean-gsa]

Chatted with @katelandisgsa (Slack) and we're going to stick with the current favicon.

We'll need to add the icon file to the _img folder, update the eleventy.js file for the image pass-through, and update meta.html to include the image.

for meta.html:

<link rel="icon" href="/favicon.ico" sizes="any">

for eleventy.js:

// Copy `img/favicon/` to `_site/`
eleventyConfig.addPassthroughCopy({ "_img/favicon": "/" });