chore: some dashpay adjustments

[pankcuf]

This pull request introduces several updates to the DashWallet project, focusing on improving sync-related functionality, enhancing platform support, and addressing minor issues. The most significant changes include updates to sync progress tracking, refinements to masternode and platform sync information, and configuration adjustments for the build process.

Sync Progress and Activity Updates:

• Updated SyncingActivityMonitor to replace references to model.combinedSyncProgress with model.progress for more accurate progress tracking. [1] [2] [3]
• Modified the peerManagerConnected property to use model.peersSyncInfo.peerManagerConnected for better encapsulation. [1] [2]

Masternode and Platform Sync Refinements:

• Updated masternode sync properties to use queueCount and queueMaxAmount instead of retrievalQueueCount and retrievalQueueMaxAmount for consistency. [1] [2]
• Added support for platform sync progress, including new properties for queueCount and queueMaxAmount in SyncingAlertContentView.

Build Configuration Enhancements:

• Added preprocessor definitions (DASHCORE_QUORUM_VALIDATION, DPP_STATE_TRANSITIONS, PLATFORM_VALUE_STD) to the Podfile to enable specific platform features during the build process.

Minor Fixes and Adjustments:

• Changed DSChain initialization in DWReceiveModelStub to explicitly use DSChain.testnet.
• Commented out an NSAssert in DWDashPayModel to prevent runtime crashes when the username is empty.

[Syn-McJ]

Looks good