* Introduce Modal, add some styles from the webapp
* Remove bootstrap from LoadingScreen/WelcomeScreen
* Migrate add/edit server modal to Modal, remove bootstrap
* Migrate remove server modal to Modal, remove bootstrap
* Migrate certificate modal to Modal, remove bootstrap
* Migrate login and permission modals to Modal, remove Bootstrap
* Misc fixes
* E2E tests for current modals
* Update src/renderer/components/Modal.tsx
Co-authored-by: Daniel Espino García <larkox@gmail.com>
* Update src/renderer/components/Modal.tsx
Co-authored-by: Daniel Espino García <larkox@gmail.com>
* PR feedback
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Co-authored-by: Daniel Espino García <larkox@gmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>
