Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

.gitignore

@@ -22,9 +22,29 @@ config/config.json
 config/logging.json
 /plugins
 
+# disable folders generated by Cypress
+e2e/cypress/node_modules
+e2e/cypress/tests/downloads
+e2e/cypress/tests/screenshots
+e2e/cypress/tests/videos
+e2e/cypress/tests/integration/benchmark/__benchmarks__
+e2e/cypress/tests/integration/performance/logs
+e2e/cypress/tests/fixtures/ldap_tmp
+e2e/cypress/tests/fixtures/mmctl
+e2e/cypress/results
+e2e/cypress/.eslintcache
+
+# disable files/folders generated by Playwright
+e2e/playwright/node_modules
+e2e/playwright/playwright-report
+e2e/playwright/storage_state
+e2e/playwright/test-results
+e2e/playwright/tests/**/*-darwin.png
+e2e/playwright/tests/**/*-window.png
+e2e/playwright/.eslintcache
+
 # Enterprise & products imports files
 imports/imports.go
-imports/boards_imports.go
 
 # go.work file
 go.work
@@ -106,7 +126,7 @@ api/data/*
 api4/data/*
 app/data/*
 
-enterprise
+/enterprise
 
 cover.out
 ecover.out