refact: Rename form mode to "Live editor"

Author: distantnative

i18n/translations/en.json

@@ -791,7 +791,7 @@
 	"version.changes": "Changed version",
 	"version.compare": "Compare versions",
 	"version.current": "Current version",
-	"version.form": "Edit content",
+	"version.form": "Live editor",
 	"version.latest": "Latest version",
 	"versionInformation": "Version information",