Live updates during a cycle; Filter & sort dropdown on phones; layout polish

- Worker publishes the rows swept so far every few seconds (LivePublishSeconds)
  with a DataVersion stamp; the dashboard reloads on each new version, so
  tables, the Overview and open dialogs update mid-cycle. Shared files are
  written to a temp file and swapped in, so readers never see half a file.
- Phones / tablets: one Filter & sort button opens a column list instead of a
  row of chips, on every table.
- Details: a wrapped Simple / Advanced toggle sits on the left.
- Card fields: fixed-height dialog; field list and add list share it evenly.

Config/usmt-dash.psd1

@@ -57,6 +57,10 @@
         # is pinged every cycle).
         # Cycles only run in business hours plus the midnight pitstop: 60 = hourly, plus midnight.
         PresenceSweepMinutes = 60
+
+        # While a cycle runs, the rows swept so far are published this often, so the
+        # dashboard updates live instead of only when the cycle finishes
+        LivePublishSeconds = 10
     }
 
     # -------------------------------------------------------------------------------------
@@ -128,6 +132,7 @@
         DelayMsPerDevice  = 35      # artificial per-device latency so the progress bar moves
         LifecycleHours    = 24      # how long one simulated migration takes, start to finish
         PresenceSweepMinutes = 5    # ping every device this often (Live default is hourly)
+        LivePublishSeconds = 4      # publish swept rows this often during a cycle
         Verbose           = $true   # run the worker with -v style tracing
     }