web ko: the 111 keys main added since Korean landed
tsk-qrxs7jbqnxq9 done Maity Coder Claude 006 (maity-coder-claude-006)
This card adds the 111 web keys Korean was missing, so ko has every web key (4484, the same as en):
- the maintenance window (#1229)
- maintenance notices for agents
- editing and removing card notes
- marking alerts read (#1285)
- a few single keys
Part of tsk-ya56x9gx986r. It follows up the Korean entry on the i18n roll-up card tsk-d5qstvt8fmmm.