Implement backup and restore functionality with manifest support (#9)

- Added BackupManifest class to define the structure of backup data.
- Introduced BackupService class to handle backup creation, restoration, and validation.
- Integrated backup options into the ConfigWindow, allowing users to create and restore backups.
- Updated localization files to include backup-related strings in English and Spanish.
- Modified MyMConfig to store the last backup date.
- Removed unnecessary SuppressMessage attributes for exception handling in various classes.
- Adjusted project settings to ensure compatibility with x64 and ARM64 platforms.

Author: rgdevment

.editorconfig

@@ -46,3 +46,7 @@ dotnet_naming_symbols.private_fields.applicable_kinds = field
 dotnet_naming_symbols.private_fields.applicable_accessibilities = private
 dotnet_naming_style.prefix_underscore.required_prefix = _
 dotnet_naming_style.prefix_underscore.capitalization = camel_case
+
+# --- Suppressed Rules ---
+dotnet_diagnostic.CA1031.severity = suggestion
+dotnet_diagnostic.CA2007.severity = none