feat(i18n): added Swedish localization file

[JorgenIvarsson]

Description

Added the Swedish Language support in the jekyll-theme-chirpy via the folder: _data/locales/sv-SE.yml

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How has this been tested

• I have run bash ./tools/test (at the root of the project) locally and passed
• I have tested this feature in the browser

Test Configuration

• Browser type & version: Firefox 11.0.1 , Safari 16.4, Chrome 111.0
• Operating system: MacOS 12.6.4
• Ruby version: 3.1.2
• Bundler version: 2.4.10
• Jekyll version: 4.3.2