[C-10110] changes `account` to `tenant`

[suhasdeshpande]

Description

changes account to tenant

Type of change

• [ ] Bug fix (non-breaking change that fixes an issue)
• [ ] New feature (non-breaking change that adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to not work as expected)

[linear[bot]]

C-10110 Courier React (Components) SDK Accounts -> Tenants

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@35b1e69). Click here to learn what that means. Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #491 +/- ## ======================================= Coverage ? 35.91% ======================================= Files ? 69 Lines ? 1189 Branches ? 362 ======================================= Hits ? 427 Misses ? 762 Partials ? 0 ```

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