Feat: dynamic saml provider logo

[ohansFavour]

Summary of change

Informs users about the need to use the correct provider name when working with SAML login.

Changes went to the following pages

• https://deploy-preview-807--admiring-bhabha-7b1be9.netlify.app/docs/thirdparty/common-customizations/sign-in-and-up/provider-config#saml-login

• https://deploy-preview-807--admiring-bhabha-7b1be9.netlify.app/docs/thirdpartyemailpassword/common-customizations/saml/with-boxyhq/integration-steps#6-configure-the-saml-provider-for-the-tenant

Related issues

• Link to issue1 here
• Link to issue1 here

Checklist

• [ ] Algolia search needs to be updated? (If there is a new sub docs project, then yes)
• [ ] Sitemap needs to be updated? (If there is a new sub docs project, then yes)
• [ ] Checked for broken links? (Run cd v2 && MODE=production npx docusaurus build)
• [ ] Changes required to the demo apps corresponding to the docs?

Remaining TODOs for this PR

• [ ] Item1
• [ ] Item2

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