Standardize on Licensed Exhibit Leads User (licensee) terminology

- Renamed all staff-related fields and variables to 'licensee'.
- Implemented correct filtering logic for Aether Admins (default All, hide My).
- Implemented correct filtering for booth users (default My, show colleagues).
- Populated dropdown labels with Full Names from license_li_json.
- Removed 'Shared Passcode' from the Lead List filter.

src/lib/stores/ae_events_stores.ts

@@ -231,6 +231,7 @@ const events_local_data_struct: key_val = {
         tracking__qry__remote_first: false,
         tracking__qry__search_text: '',
         tracking__qry__sort_order: 'created_desc',
+        tracking__qry__licensee_email: 'all',
 
         // The entered_passcode is the exhibit booths shared passcode for staff. This is used to initially access the lead retrieval service.
         entered_passcode: null,