Extract icons out of packages/open-scd and into packages/icons

[juancho0202]

As part of an effort of separation of concerns, we would like to have all UI components extracted from /packages/open-scd and into /packages/icons. This will also help in better organization of code and make it easier to manage and reuse icons across different parts of the application.

Acceptance Criteria:

All icons currently located in the /packages/open-scd directory must be successfully extracted to the /packages/icons directory. All icons must retain their functionality and appearance as before the extraction process. Any existing dependencies or imports related to the extracted icons must be updated to point to the packages/icons project.