Revert changes to packages/mock and introduce

packages/storybook-addon-mock

Author: Guilherme da Silva Amorim

.changeset/shiny-sloths-drum.md

@@ -2,7 +2,6 @@
 '@web/storybook-framework-web-components': minor
 '@web/storybook-builder': minor
 '@web/storybook-utils': minor
-'@web/mocks': minor
 ---
 
 Migrate projects to Storybook 9

.changeset/smooth-bugs-lay.md

@@ -0,0 +1,5 @@
+---
+'@web/storybook-addon-mocks': patch
+---
+
+Initial commit