[ADF-584] [ADF-3561] Validation error summary for error component (#3795)

* emit Forms error

* add demo

* add documentation
remove old form tag deprecated in 1.x
fix translation outcome

* remove prevent default validation

* fix lint

lib/core/i18n/en.json

@@ -1,4 +1,7 @@
 {
+  "SAVE": "SAVE",
+  "START": "COMPLETE",
+  "START PROCESS": "START PROCESS",
   "FORM": {
     "START_FORM": {
       "TITLE": "Start Form"

lib/core/i18n/it.json

@@ -1,4 +1,7 @@
 {
+  "SAVE": "SALVA",
+  "COMPLETE": "COMPLETA",
+  "START PROCESS": "INIZIA PROCESSO",
   "FORM": {
     "START_FORM": {
       "TITLE": "Modulo di inizio"