chore: fix typo in logs and makefile surpress command output

Author: MarcosNicolau

examples/L2/Makefile

@@ -3,7 +3,7 @@
 SHELL := /bin/bash
 
 gen_env_l2_holesky:
-	cp .env.holesky .env
+	@cp .env.holesky .env
 
 run_l2:
 	@cd crates/l2 && cargo run --release --bin main
@@ -13,7 +13,7 @@ generate_program_id:
 	@cat ./crates/l2/programs_ids.json
 
 gen_env_contract_holesky:
-	cp ./contracts/.env.holesky ./contracts/.env
+	@cp ./contracts/.env.holesky ./contracts/.env
 
 deploy_contract:
 	@. ./contracts/.env && . ./contracts/scripts/deploy.sh

examples/L2/crates/l2/src/lib.rs

@@ -73,7 +73,7 @@ pub async fn start_l2(config: Config) {
         info!("Proof submitted");
 
         // 5. Wait until proof is aggregated
-        info!("Waiting until is proof is aggregated...");
+        info!("Waiting until proof is aggregated...");
         let merkle_path = wait_until_proof_is_aggregated(&config, &proof, &vk).await;
         info!("Proof has been aggregated on aligned, about to send update to chain...");