Revert "Add StoryBook."

.storybook/main.cjs

.storybook/preview.cjs

package-lock.json

package.json

src/stories/Button.stories.svelte

src/stories/Button.svelte

src/stories/Header.stories.svelte

src/stories/Header.svelte

src/stories/Introduction.stories.mdx

src/stories/Page.stories.svelte

src/stories/Page.svelte

src/stories/assets/code-brackets.svg

src/stories/assets/colors.svg

src/stories/assets/comments.svg

src/stories/assets/direction.svg

src/stories/assets/flow.svg

src/stories/assets/plugin.svg

src/stories/assets/repo.svg

src/stories/assets/stackalt.svg

src/stories/button.css