[CLD-7567] Deprecate Self Serve: Second Pass (#26853)

* Deprecate Self Serve: First Pass

* Fix ci

* Fix more ci

* Remmove outdated server tests

* Fix a missed spot opening purchase modal in Self Hosted

* Fix i18n

* Clean up some more server code, fix webapp test

* Fix alignment of button

* Fix linter

* Fix i18n server side

* Deprecate in product true up

* Add back translation

* Remove client functions

* Put back client functions

* webapp deprecation

* Deprecate Self Serve: Second Pass

* Fix various pipeline issues

* Fix linter

* Fix pipelines

* Fix handlers_test.go

* Fix console.error around hostedCustomer in reducer

* PICKY LINTER PLEASE

* Fix webapp tests, various other fixes for the CI pipelines

* Fix i18n

* Updates to accomadate enterprise code removal

* Fix mocks

* More removal

* Fix

* Adjustments from PR

* Fixes for QA Feedback

* Update

* Add migrations to remove true up review history

* Fix migrations check

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: maria.nunez <maria.nunez@mattermost.com>

webapp/channels/package.json

@@ -18,8 +18,6 @@
     "@mui/base": "5.0.0-alpha.127",
     "@mui/material": "5.11.16",
     "@mui/styled-engine-sc": "5.11.11",
-    "@stripe/react-stripe-js": "1.13.0",
-    "@stripe/stripe-js": "1.41.0",
     "@tanstack/react-table": "8.10.7",
     "@tippyjs/react": "4.2.6",
     "@types/color-hash": "1.0.2",