Repository: CodeEditApp/CodeEdit
File: CodeEditModules/Modules/AppPreferences/src/Model/General/GeneralPreferences.swift (Swift)

Code before:
    enum Issues: String, Codable {
        case inline
        case minimized
    }

    /// The style for file extensions display
    ///  - **hideAll**: File extensions are hidden
    ///  - **showAll** File extensions are visible
    ///  - **showOnly** Specific file extensions are visible
    enum FileExtensions: Codable, Hashable {
        case hideAll
        case showAll
        case showOnly
        case hideOnly
    }

    /// The collection of file extensions used by ``FileExtensions/showOnly`` or  ``FileExtensions/hideOnly`` preference
    struct FileExtensionsCollection: Codable, Hashable {
        public var extensions: [String] {
            string
                .components(separatedBy: ",")
                .map({$0.trimmingCharacters(in: .whitespacesAndNewlines)})
                .filter({!$0.isEmpty})
        }

        public var string: String

        public static var `default` = FileExtensionsCollection(string: [
            "c", "cc", "cpp", "h", "hpp", "m", "mm", "gif",
            "icns", "jpeg", "jpg", "png", "tiff", "swift"
        ].joined(separator: ", "))
    }
    /// The style for file icons
    /// - **color**: File icons appear in their default colors
    /// - **monochrome**: File icons appear monochromatic
    enum FileIconStyle: String, Codable {
        case color
        case monochrome
    }

    /// The style for tab bar
    /// - **native**: Native-styled tab bar (like Finder)
    /// - **xcode**: Xcode-liked tab bar
    enum TabBarStyle: String, Codable {
        case native
        case xcode
    }

    /// The reopen behavior of the app
    /// - **welcome**: On restart the app will show the welcome screen
    /// - **openPanel**: On restart the app will show an open panel

Review comment (suggestion):
I think the `string` should be computed (get, set) from the array instead of the other way around since the `string` is just a representation of the data.

Code after:
    enum Issues: String, Codable {
        case inline
        case minimized
    }

    /// The style for file extensions visibility
    ///  - **hideAll**: File extensions are hidden
    ///  - **showAll** File extensions are visible
    ///  - **showOnly** Specific file extensions are visible
    ///  - **hideOnly** Specific file extensions are hidden
    enum FileExtensionsVisibility: Codable, Hashable {
        case hideAll
        case showAll
        case showOnly
        case hideOnly
    }

    /// The collection of file extensions used by
    /// ``FileExtensionsVisibility/showOnly`` or  ``FileExtensionsVisibility/hideOnly`` preference
    struct FileExtensions: Codable, Hashable {
        public var extensions: [String]

        public var string: String {
            get {
                extensions.joined(separator: ", ")
            }
            set {
                extensions = newValue
                    .components(separatedBy: ",")
                    .map({$0.trimmingCharacters(in: .whitespacesAndNewlines)})
                    .filter({!$0.isEmpty || string.count < newValue.count })
            }
        }

        public static var `default` = FileExtensions(extensions: [
            "c", "cc", "cpp", "h", "hpp", "m", "mm", "gif",
            "icns", "jpeg", "jpg", "png", "tiff", "swift"
        ])
    }
    /// The style for file icons
    /// - **color**: File icons appear in their default colors
    /// - **monochrome**: File icons appear monochromatic
    enum FileIconStyle: String, Codable {
        case color
        case monochrome
    }

    /// The style for tab bar
    /// - **native**: Native-styled tab bar (like Finder)
    /// - **xcode**: Xcode-liked tab bar
    enum TabBarStyle: String, Codable {