Fix the favicon, and reword the copy that leaned on em dashes

[zlshames]

Two unrelated bits of polish, one commit each.

Favicon

The link tag declared sizes="48x48", carried over from the old site. The .ico actually contains 16, 24, 32 and 48px entries, so claiming a single size stopped browsers picking the right one for a tab.

• sizes="any" on the .ico, so the browser chooses from what's really in there
• Added 16 and 32px PNGs generated from the 512px brand icon (852 B and 2281 B). Browsers prefer PNG where offered, and these are sharper than the .ico's BMP-encoded entries
• The .ico stays as the fallback
• Both PNGs are asserted in the build

The file itself was fine and served with the right content-type, so this is purely the markup plus better sources.

Em dashes

Six across the copy this site added, each rewritten rather than swapped for another mark — an em dash usually hides a sentence that wanted restructuring:

Before	After
"…to do the actual talking — there's no way around it"	"…to do the actual talking, and there is no way around it"
"It does not need to be fast — it only relays messages"	"It only relays messages, so it does not need to be fast"
"Managed Macs usually block both — and doing it anyway…"	"Managed Macs usually block both, and doing it anyway…"
"Yes — this is built for you"	"Yes, this is built for you"
"nothing sent anywhere — it all runs in your browser"	"questions, answered in your browser. No email address, and nothing is sent anywhere."
"Copy failed — press Control or Command + C"	"Copy failed. Press Control or Command + C instead."

The FAQ, install guide and legal documents are untouched — that copy is carried over verbatim and isn't ours to restyle. As it happens none of them contained one.

The built output now contains zero em dashes.

🤖 Generated with Claude Code