hotfix: update DEV config values

Author: michaelgpt

app/src/spec.rs

@@ -57,16 +57,16 @@ pub static DEV: Lazy<ChainSpec> = Lazy::new(|| {
         ],
         bits: 505794034,
         chain_id: 121212,
-        max_blocks_without_pow: 20,
-        required_btc_txn_confirmations: 4,
-        bitcoin_start_height: 0,
+        max_blocks_without_pow: 50000,
+        required_btc_txn_confirmations: 144,
+        bitcoin_start_height: 95800, // TODO: change when deploying new testnet4
         retarget_params: BitcoinConsensusParams {
+            pow_no_retargeting: false,
             pow_limit: 553713663,
             pow_lower_limit: 439495319,
-            pow_target_timespan: 120000,
-            pow_target_spacing: 10000,
-            pow_no_retargeting: true,
-            max_pow_adjustment: 20
+            max_pow_adjustment: 20,
+            pow_target_timespan: 60,
+            pow_target_spacing: 5
         },
         is_validator: true,
         execution_timeout_length: 3,