Implement initial entry editing support (no notes editing or gen update)

src/offline/utilitiesMisc.go

@@ -115,3 +115,12 @@ func StringGen(length int, complex bool, complexity float64) string {
 		actualSpecialChars = 0
 	}
 }
+
+func EntryIsNotEmpty(entryData []string) bool {
+	for _, line := range entryData {
+		if line != "" {
+			return true
+		}
+	}
+	return false
+}