Retirado o hard code de fetch de dados do painel

frontend/src/__apps/painel/main.js

@@ -88,9 +88,14 @@ const v = new Vue({ // eslint-disable-line
       }
       return texto
     },
+    converterUrl (url) {
+      url = url.slice(-4)
+      url = '/painel/' + url + '/dados'
+      return url
+    },
     fetchData () {
       // TODO: how to get no hardcoded URL?
-      $.get('/painel/2867/dados', function (response) {
+      $.get(this.converterUrl(window.location.pathname), function (response) {
         this.brasao = response.brasao
         this.painel_aberto = response.status_painel
         this.sessao_finalizada = response.sessao_finalizada