Replace fiber with net.http.ServeMux (#23)

app/attr.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2024 Thomas von Dein
+Copyright © 2024-2025 Thomas von Dein
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -28,6 +28,7 @@ type DbAttr struct {
 	Key       string
 	Preview   string
 	Val       []byte
+	Data      string // alias
 	Args      []string
 	Tags      []string
 	File      string
@@ -63,6 +64,12 @@ func (attr *DbAttr) ParseKV() error {
 		}
 	}
 
+	attr.SetPreview()
+
+	return nil
+}
+
+func (attr *DbAttr) SetPreview() {
 	switch {
 	case attr.Binary:
 		attr.Preview = "<binary-content>"
@@ -82,8 +89,6 @@ func (attr *DbAttr) ParseKV() error {
 			attr.Preview = string(attr.Val)
 		}
 	}
-
-	return nil
 }
 
 func (attr *DbAttr) GetFileValue() error {