fix(footer): stop the links row orphaning, move account deletion into Settings

[dmnyc]

Two related footer changes.

1. The links row no longer orphans

Before: ⚡ Support · About · Founders · Sponsors · Report a Bug · Terms · Privacy · Safety · Delete Account — then Disclosure alone on a second line.

Two causes, both fixed:

Separators were their own flex items. Each <span class="footer-sep">·</span> sat in the flex flow as an independent element, so every dot was its own wrap opportunity — a break could strand a · at the end of a line or leave a single link on the next. They're now ::after pseudo-elements on the links themselves, so a link and its trailing dot always move together. Spacing is unchanged (the 0.5rem that used to come from the flex gap now comes from the pseudo-element's margin-left, with the gap still separating items).

One item too many. Removing "Delete Account" (see below) takes the row from 9 items to 8 wide ones.

Measured after the change:

Container width	Result
Default (42rem)	1 line, no wrap
520px	7 + 2
380px	4 + 5
300px	4 + 4 + 1

It still wraps when genuinely too narrow — that's what wrapping is for — but it now breaks between links and never leaves a separator hanging.

2. Account deletion moved into Settings

"Delete Account" sat in the footer between "Safety" and "Disclosure", styled identically to the terms/privacy links. An irreversible account action shouldn't read as an ordinary utility link, and Settings is where people look for it.

It's now at the end of Settings → Security, as a red action with a short explanation:

Request removal of your account data from zap.cooking. Your Nostr identity and any notes already published to relays are not affected — they aren't ours to delete.

That caveat is worth stating up front: the /delete-account route is unchanged and still does exactly what it did, but the footer link gave no hint about what deletion can and can't reach.

Verification

• pnpm check — 1 error / 152 warnings, identical to main (pre-existing delete-operator error)
• pnpm test — 1267 passed
• Checked in a browser: footer renders on one line at desktop width; wrap points measured at 520/380/300px as above

Worth a look on a real phone — my narrow-width numbers come from constraining the container in the page rather than an actual mobile viewport.