Remove BIcon, BIconstack, and BIconBase

We have recently vendored the BootstrapVue library into our project. As part of our ongoing efforts to optimize our codebase and reduce unnecessary overhead, we are now focusing on cleaning up the library by removing any unused code. While we removed almost all components in #2752 (closed), the components BIcon, BIconstack, and BIconBase remain.

In this issue, we want to remove all three of these components. There are multiple files which need to bre removed/modifies as well, such as:

• src/vendor/bootstrap-vue/scripts/create-icons.js
• src/vendor/bootstrap-vue/scripts/create-web-types.js
• src/vendor/bootstrap-vue/docs/pages/docs/icons/index.js

This is not a complete list. It is task of this issue to completely remove the Icon Components and their traces.