Update CMS Entity and Forms to Include New Fields

- Added new fields to the CMS entity: CompanyName, Country, and Language, enhancing the data structure for better content management.
- Updated the CMSForm to include validation and examples for the new fields, ensuring proper input handling.
- Modified the copyFormToEntity method in the CMS service to map the new fields from the form to the entity, maintaining data integrity.
- Enhanced Swagger documentation to reflect the changes in the CMS API, providing clear examples for the new fields.

internal/cms/entity.go

@@ -9,14 +9,17 @@ import (
 // CMS represents the content management system for the landing page
 type CMS struct {
 	mongo.Model `bson:",inline"`
-	Key         string         `bson:"key" json:"key" validate:"required"`
-	Hero        heroSection    `bson:"hero" json:"hero"`
-	Chart       chartSection   `bson:"chart" json:"chart"`
-	Features    cardSection    `bson:"features" json:"features"`
-	Challenges  cardSection    `bson:"challenges" json:"challenges"`
-	Advantages  cardSection    `bson:"advantages" json:"advantages"`
-	Contact     contactSection `bson:"contact" json:"contact"`
-	Footer      footerSection  `bson:"footer" json:"footer"`
+	Key         string         `bson:"key"`
+	Language    string         `bson:"language"`
+	CompanyName string         `bson:"company_name"`
+	Country     string         `bson:"country"`
+	Hero        heroSection    `bson:"hero"`
+	Chart       chartSection   `bson:"chart"`
+	Features    cardSection    `bson:"features"`
+	Challenges  cardSection    `bson:"challenges"`
+	Advantages  cardSection    `bson:"advantages"`
+	Contact     contactSection `bson:"contact"`
+	Footer      footerSection  `bson:"footer"`
 }
 
 // SetID sets the CMS ID (implements IDSetter interface)