Switch the friendly deep-link / legacy SSO callback scheme from element://
to healthchat:// and stop registering element:// entirely. The reverse-DNS
OIDC primary scheme (ch.healthchat.desktop://) is unchanged. Also rebrand the
round-tripped SSO id param element-desktop-ssoid -> healthchat-desktop-ssoid
on both the desktop and web sides.
getOidcCallbackUrl() was building the redirect_uri from window.location.href,
which may contain ephemeral params such as `updated` (appended on auto-update of element-web).
This caused a redirect_uri mismatch on authorization servers.
mkdir apps/web/scripts
mv scripts/{cleanup.sh,ci_package.sh,copy-res.ts,deploy.py,package.sh} apps/web/scripts
And a couple of gitignore tweaks
Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>