feat: save messages to database (close #37)

common/template.go

@@ -0,0 +1,17 @@
+package common
+
+import (
+	"embed"
+	"html/template"
+)
+
+//go:embed public
+var FS embed.FS
+
+func LoadTemplate() *template.Template {
+	var funcMap = template.FuncMap{
+		"unescape": UnescapeHTML,
+	}
+	t := template.Must(template.New("").Funcs(funcMap).ParseFS(FS, "public/*.html"))
+	return t
+}