feat: zkool2 (#3165)

* feat: zkool2

* feat: rescan on zkool
fix: sending to extracted addresses
fix: labeling shielding txs
fix: autoshield endless loop
fix: autoshield t addr not firing
fix: autoshield destinations
chore: remove old routes for rescan with zkool
other minor fixes/cleanups

* fix: zcash hardfork

* fix: update sync progress more reliably

* fix: pending transaction loading
fix: autoshield txs
fix: taddress
fix: fee estimation
fix: tx send errors

* chore: bump zkool2 to latest version
fix: reduce amount of taddrs generated
fix: derivation path for internal wallets
fix: display address in correct hidden/usable spots
fix: get wallet db height before it syncs for the first time
fix: taddr rotation with passphrase
fix: sync progress ui refresh
fix: taddress generation not getting capped
fix: hidden addresses not being hidden
fix: pending transactions not being shown
fix: t address cache misses
fix: t address rotation not getting refreshed
fix: t address high index not being used

* fix: refresh t addresses

* fix: patch rust side to make t addr rotation work

* fix: ui issue in recipient address
fix: zcash multiaddress send to show in the ui
fix: potential race condition

* minor fixes

* format

* fix: flashing on receive screen

* remove unused 'autoShield'

* review

lib/core/background_sync.dart

@@ -210,7 +210,11 @@ class BackgroundSync {
         }
         await sharedPreferences.setString(PreferencesKey.backgroundSyncLastTrigger(wallet.name),
             tx.date.add(Duration(minutes: 1)).toIso8601String());
-        final action = tx.direction == TransactionDirection.incoming ? "Received" : "Sent";
+        final action = tx.additionalInfo['isAutoShield'] == true
+            ? "Autoshield"
+            : tx.direction == TransactionDirection.incoming
+                ? "Received"
+                : "Sent";
         if (sharedPreferences.getBool(PreferencesKey.backgroundSyncNotificationsEnabled) ?? false) {
           await showNotification(
               "$action ${wallet.currency.fullName} in ${wallet.name}", "${tx.amount.toString()}");