chore: fix some comments (#10519)

Signed-off-by: jianghuyiyuan <shuangcui@live.com>

apps/explorer/lib/explorer/chain/arbitrum/batch_block.ex

@@ -18,7 +18,7 @@ defmodule Explorer.Chain.Arbitrum.BatchBlock do
   @required_attrs ~w(batch_number block_number)a
 
   @typedoc """
-  Descriptor of the a rollup block included in an Arbitrum batch:
+  Descriptor of the rollup block included in an Arbitrum batch:
     * `batch_number` - The number of the Arbitrum batch.
     * `block_number` - The number of the rollup block.
     * `confirmation_id` - The ID of the confirmation L1 transaction from

apps/explorer/lib/explorer/chain/arbitrum/batch_transaction.ex

@@ -17,7 +17,7 @@ defmodule Explorer.Chain.Arbitrum.BatchTransaction do
   @required_attrs ~w(batch_number tx_hash)a
 
   @typedoc """
-  Descriptor of the a rollup transaction included in an Arbitrum batch:
+  Descriptor of the rollup transaction included in an Arbitrum batch:
     * `batch_number` - The number of the Arbitrum batch.
     * `tx_hash` - The hash of the rollup transaction.
   """

apps/explorer/lib/explorer/chain/arbitrum/da_multi_purpose_record.ex

@@ -22,7 +22,7 @@ defmodule Explorer.Chain.Arbitrum.DaMultiPurposeRecord do
   @allowed_attrs @optional_attrs ++ @required_attrs
 
   @typedoc """
-  Descriptor of the a multi purpose record related to Data Availability for Arbitrum rollups:
+  Descriptor of the multi purpose record related to Data Availability for Arbitrum rollups:
     * `data_key` - The hash of the data key.
     * `data_type` - The type of the data.
     * `data` - The data

apps/explorer/lib/explorer/chain/arbitrum/l1_batch.ex

@@ -23,7 +23,7 @@ defmodule Explorer.Chain.Arbitrum.L1Batch do
   @allowed_attrs @optional_attrs ++ @required_attrs
 
   @typedoc """
-  Descriptor of the a L1 batch for Arbitrum rollups:
+  Descriptor of the L1 batch for Arbitrum rollups:
     * `number` - The number of the Arbitrum batch.
     * `transactions_count` - The number of transactions in the batch.
     * `start_block` - The number of the first block in the batch.

apps/explorer/lib/explorer/chain/arbitrum/l1_execution.ex

@@ -16,7 +16,7 @@ defmodule Explorer.Chain.Arbitrum.L1Execution do
   @required_attrs ~w(message_id execution_id)a
 
   @typedoc """
-  Descriptor of the a L1 execution transaction related to a L2 to L1 message on Arbitrum rollups:
+  Descriptor of the L1 execution transaction related to a L2 to L1 message on Arbitrum rollups:
     * `message_id` - The ID of the message from `Explorer.Chain.Arbitrum.Message`.
                      There could be situations when an execution of a message is
                      discovered, but the message itself is not indexed yet.

apps/explorer/lib/explorer/chain/arbitrum/lifecycle_transaction.ex

@@ -18,7 +18,7 @@ defmodule Explorer.Chain.Arbitrum.LifecycleTransaction do
   @required_attrs ~w(id hash block_number timestamp status)a
 
   @typedoc """
-  Descriptor of the a L1 transaction changing state of transactions and blocks of Arbitrum rollups:
+  Descriptor of the L1 transaction changing state of transactions and blocks of Arbitrum rollups:
     * `id` - The ID of the transaction used for referencing.
     * `hash` - The hash of the L1 transaction.
     * `block_number` - The number of the L1 block where the transaction is included.

apps/explorer/lib/explorer/chain/arbitrum/message.ex

@@ -20,7 +20,7 @@ defmodule Explorer.Chain.Arbitrum.Message do
   @allowed_attrs @optional_attrs ++ @required_attrs
 
   @typedoc """
-  Descriptor of the a L1<->L2 message on Arbitrum rollups:
+  Descriptor of the L1<->L2 message on Arbitrum rollups:
     * `direction` - The direction of the message: `:to_l2` or `:from_l2`.
     * `message_id` - The ID of the message used for referencing.
     * `originator_address` - The address of the message originator. The fields