docs: fix whitespace typo in transcoder documentation. (#19353)

* Fix whitespace typo in transcoder documentation.

The documentation for `convert_grpc_status` had two leading spaces in the text
following a code block, causing the text to be rendered as part of the code block.

* Remove whitespace from transcoder.proto.

Signed-off-by: Pras Velagapudi <psigen@gmail.com>

Mirrored from https://github.com/envoyproxy/envoy @ e9f36d2c49a3c9176340303b44ef593bd0b78c35

envoy/config/filter/http/transcoder/v2/transcoder.proto

@@ -153,8 +153,8 @@ message GrpcJsonTranscoder {
   //
   //     {"code":5,"details":[{"@type":"type.googleapis.com/google.rpc.RequestInfo","requestId":"r-1"}]}
   //
-  //  In order to transcode the message, the ``google.rpc.RequestInfo`` type from
-  //  the ``google/rpc/error_details.proto`` should be included in the configured
-  //  :ref:`proto descriptor set <config_grpc_json_generate_proto_descriptor_set>`.
+  // In order to transcode the message, the ``google.rpc.RequestInfo`` type from
+  // the ``google/rpc/error_details.proto`` should be included in the configured
+  // :ref:`proto descriptor set <config_grpc_json_generate_proto_descriptor_set>`.
   bool convert_grpc_status = 9;
 }

envoy/extensions/filters/http/grpc_json_transcoder/v3/transcoder.proto

@@ -206,9 +206,9 @@ message GrpcJsonTranscoder {
   //
   //     {"code":5,"details":[{"@type":"type.googleapis.com/google.rpc.RequestInfo","requestId":"r-1"}]}
   //
-  //  In order to transcode the message, the ``google.rpc.RequestInfo`` type from
-  //  the ``google/rpc/error_details.proto`` should be included in the configured
-  //  :ref:`proto descriptor set <config_grpc_json_generate_proto_descriptor_set>`.
+  // In order to transcode the message, the ``google.rpc.RequestInfo`` type from
+  // the ``google/rpc/error_details.proto`` should be included in the configured
+  // :ref:`proto descriptor set <config_grpc_json_generate_proto_descriptor_set>`.
   bool convert_grpc_status = 9;
 
   // URL unescaping policy.