fix(pres_mgmt): Location column ignored admin's Hide Location setting

Same bug pattern as the earlier POC column fix. The Session Search
results table's Location column prop only ever read the local-only,
never-synced hide__session_li_location_field — never the admin-synced
hide__session_location (Config page > Session Field Visibility > Hide
Location). Column always showed regardless of that setting or
permission level.

Fixed in pres_mgmt/+page.svelte:
  hide__session_location || hide__session_li_location_field

The other two usages of this component already hardcode
hide__session_location={true} correctly (you're already on that
location's own page, showing its name again would be redundant).

Logged in PROJECT__AE_Events_PressMgmt_Config_Cleanup.md with a note to
audit other hide__* fields for the same gap if more reports come in.

svelte-check: 0 errors, 0 warnings.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/events/[event_id]/(pres_mgmt)/pres_mgmt/+page.svelte

@@ -484,7 +484,8 @@ if (
         {#if event_session_id_li.length}
             <Comp_event_session_obj_li_wrapper
                 {lq__event_session_obj_li}
-                hide__session_location={pres_mgmt_loc.current.hide__session_li_location_field}
+                hide__session_location={pres_mgmt_loc.current.hide__session_location ||
+                    pres_mgmt_loc.current.hide__session_li_location_field}
                 hide__session_poc={pres_mgmt_loc.current.hide__session_poc ||
                     !pres_mgmt_loc.current.show__session_li_poc_field}
                 hide__launcher_link={pres_mgmt_loc.current.hide__launcher_link}