Accordion

[Kieris]

Closes #1

📑 Description

Created base component and Accordion/AccordionItem components. Modified the project settings to ensure BlazorServer and BlazorWasm could be deployed and work the same as in local.

Made some quick free sample deployments on Azure: Server: https://fbblazorserver.azurewebsites.net WASM: https://fbblazorwasm.azurewebsites.net

✅ Checks

• [X ] My pull request adheres to the code style of this project
• [ X] My code requires changes to the documentation (added accordion.md that can be linked to something)
• [ X] I have updated the documentation as required
• [ ] All the tests have passed
• [ X] My pull request is based on the latest commit/version

ℹ Additional Information

Added important PostBuild commands that require postcss to be installed for a successful build. Other things added to CHANGELOG