fix: register gRPC Gateway routes (#2838)

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## Overview

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This PR fixes #2837.

Both `blob` and `blobstream` modules lack registration for the gRPC
Gateway routes, leading to the inability to query endpoints. Let me know
if there is anything i need to do to merge this PR.

CI checks require 3 workflows awaiting approval.

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- [ ] New and updated code has appropriate documentation
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(cherry picked from commit b75c7e3)

x/blob/module.go

@@ -1,6 +1,7 @@
 package blob
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -75,7 +76,10 @@ func (AppModuleBasic) RegisterRESTRoutes(_ client.Context, _ *mux.Router) {
 }
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
-func (AppModuleBasic) RegisterGRPCGatewayRoutes(_ client.Context, _ *runtime.ServeMux) {
+func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.

x/qgb/module.go

@@ -1,6 +1,7 @@
 package qgb
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 
@@ -76,7 +77,10 @@ func (AppModuleBasic) RegisterRESTRoutes(_ client.Context, _ *mux.Router) {
 }
 
 // RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
-func (AppModuleBasic) RegisterGRPCGatewayRoutes(_ client.Context, _ *runtime.ServeMux) {
+func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
+	if err := types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx)); err != nil {
+		panic(err)
+	}
 }
 
 // GetTxCmd returns the capability module's root tx command.