Updated deps, go.19 migration, nginx template work

backend/internal/entity/certificate/template.go

@@ -0,0 +1,22 @@
+package certificate
+
+// Template is the model given to the template parser, converted from the Model
+type Template struct {
+	ID                     int
+	CreatedOn              string
+	ModifiedOn             string
+	ExpiresOn              string
+	Type                   string
+	UserID                 int
+	CertificateAuthorityID int
+	DNSProviderID          int
+	Name                   string
+	DomainNames            []string
+	Status                 string
+	IsECC                  int
+	// These are helpers for template generation
+	IsCustom   bool
+	IsAcme     bool // non-custom
+	IsProvided bool
+	Folder     string
+}