Some minor changes to sections that were missing in some files

Fixing missing sessions is some pt-BR files and also
one small typo of an hmtl end paragraph </p> in the 21-httprequest.html
of en-US original language file.

packages/node_modules/@node-red/editor-client/locales/pt-BR/editor.json

@@ -104,7 +104,7 @@
             "export": "Exportar",
             "search": "Procurar fluxos",
             "searchInput": "procure seus fluxos",
-            "subfluxo": "subfluxo",
+            "subflows": "subfluxos",
             "createSubflow": "Criar Subfluxo",
             "selectionToSubflow": "Seleção para subfluxo",
             "flows": "Fluxos",
@@ -539,7 +539,7 @@
         "search": "procurar módulos",
         "addCategory": "Adicionar novo...",
         "label": {
-            "subfluxo": "subfluxo",
+            "subflows": "subfluxos",
             "network": "rede",
             "common": "comum",
             "input": "entrada",
@@ -701,7 +701,7 @@
             "label": "configuração",
             "global": "Em todos os fluxos",
             "none": "nenhum",
-            "subfluxo": "subfluxos",
+            "subflows": "subfluxos",
             "flows": "fluxos",
             "filterAll": "todos",
             "showAllConfigNodes": "Ver todas as configurações dos nós",