Some user/org pages use `Owner` variable. It's an incorrect concept since year 2016: what is a user's owner? Actually, new code is right: use `ContextUser`. This PR cleans all legacy "Owner" variables. ## Screenshots for related pages and test results All pages are as before: ### `web/org/home.go`  ### `web/user/profile.go`  ### `web/user/setting/profile.go`  |
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| .. | ||
| alert.tmpl | ||
| alert_details.tmpl | ||
| delete_modal_actions.tmpl | ||
| disable_form_autofill.tmpl | ||
| footer.tmpl | ||
| footer_content.tmpl | ||
| head.tmpl | ||
| head_navbar.tmpl | ||
| head_script.tmpl | ||
| paginate.tmpl | ||