refactor(middleware/session): Update session middleware Set, Get, and…

… Delete methods

Refactor the Set, Get, and Delete methods in the session middleware to use more descriptive parameter names. Instead of using "middlewareContextKey", the methods now use "key" to represent the key of the session value. This improves the readability and clarity of the code.

middleware/session/middleware.go

@@ -195,11 +195,11 @@ func FromContext(c fiber.Ctx) *Middleware {
 // Usage:
 //
 //	m.Set("key", "value")
-func (m *Middleware) Set(middlewareContextKey string, value any) {
+func (m *Middleware) Set(key string, value any) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	m.Session.Set(middlewareContextKey, value)
+	m.Session.Set(key, value)
 }
 
 // Get retrieves a value from the session by key.
@@ -213,11 +213,11 @@ func (m *Middleware) Set(middlewareContextKey string, value any) {
 // Usage:
 //
 //	value := m.Get("key")
-func (m *Middleware) Get(middlewareContextKey string) any {
+func (m *Middleware) Get(key string) any {
 	m.mu.RLock()
 	defer m.mu.RUnlock()
 
-	return m.Session.Get(middlewareContextKey)
+	return m.Session.Get(key)
 }
 
 // Delete removes a key-value pair from the session.
@@ -228,11 +228,11 @@ func (m *Middleware) Get(middlewareContextKey string) any {
 // Usage:
 //
 //	m.Delete("key")
-func (m *Middleware) Delete(middlewareContextKey string) {
+func (m *Middleware) Delete(key string) {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	m.Session.Delete(middlewareContextKey)
+	m.Session.Delete(key)
 }
 
 // Destroy destroys the session.