major:
enterprise FES: send one message per web portal recipient, each with different url
include WKD in pubkey search when verifying messages
ongoing sync from EKM (deleting private keys not supported yet)
button to export email content as pdf (print/for printing)
update client configuration each time settings page is refreshed or gmail content script loaded

minor:
look up users on LDAP explicitly using a ldap-relay API when Attester search enabled
fixed/improved responding with plain message to encrypted message with triple dot
security: improved html-escaping of error messages
enforce message signing when sending encrypted message
EKM endpoint URL updated from /end-user/key-pairs to /v1/end-user/key-pairs
improve contact search results by caching found contacts locally as soon as they are fetched
check for unusable keys in a consistent manner between sending and saving draft
fixed bug that caused special characters in attachment filenames to not render properly
improved UI regarding "from" in compose window to be consistent with Gmail behavior
fixed a bug that caused encrypted reply frame to be initially too wide if there are many recipients
updating of public key in another frame now also causes password prompt to be re-evaluated
fixed a bug that was causing "[object Object]" to be rendered instead of recipients when replying
improve EKM import key screen response - show clear loading state