[SG-40295] Extract bootstrap style import @import 'bootstrap/scss/function', @import 'bootstrap/scss/mixins'

Created by: gitstart-sourcegraph

Description

We depend on Bootstrap styles in our global styles a lot. But we don't plan to move forward with Bootstrap because we're working on our design system called Wildcard. To ease the transition to our styles and gain more control over visual changes, we want to move Bootstrap styles that we need into our codebase and eventually drop Bootstrap dependency.

Refs

Parent Issue SourceGraph Issue GitStart Issue

Test Plan

• All imports mentioned above are removed and there is no UI Changes

App preview:

• Web
• Storybook

Check out the client app preview documentation to learn more.