feat: added navbar system with some refactors

adapters/secondary/TemplateAdapter.go

@@ -1,48 +0,0 @@
-package secondary
-
-import (
-	"bytes"
-	"html/template"
-	"os"
-)
-
-func ProcessTemplate(html []byte, data interface{}) ([]byte, error) {
-	tmpl, err := template.New("template").Parse(string(html))
-	if err != nil {
-		return nil, err
-	}
-
-	var processedHTML bytes.Buffer
-	err = tmpl.Execute(&processedHTML, data)
-	if err != nil {
-		return nil, err
-	}
-
-	return processedHTML.Bytes(), nil
-}
-
-func GetTemplate(name string) []byte {
-	file, err := os.Open("./web/templates/" + name + ".html")
-	if err != nil {
-		panic(err)
-	}
-	defer func(file *os.File) {
-		err := file.Close()
-		if err != nil {
-			panic(err)
-		}
-	}(file)
-
-	stat, err := file.Stat()
-	if err != nil {
-		panic(err)
-	}
-
-	bs := make([]byte, stat.Size())
-	_, err = file.Read(bs)
-	if err != nil {
-		panic(err)
-	}
-
-	return bs
-}