Removed darker content background, improved padding, updated Discord username & substituted handle for DID in Bluesky and Tangled links main

Remove transgender flag badge (sorry!) to avoid potential confusion

Add koi.rip and thegail.site badges, tweak page styling

Add Mastodon link to document head and body text

Fix smol link colours

New badges, Bluesky link, Tangled link & other minor improvements.