docs: Update operator/docs/operator/storage_size_calculator.md

[ydFu]

What this PR does / why we need it:

• Using the link https://quay.io/signin/ will redirect to https://sso.redhat.com/auth/realms/redhat-external/protocol/openid-connect/auth?response_type=code&client_id=quay.io&redirect_uri=https%3A%2F%2Fquay.io%2Foauth2%2Frhsso%2Fcallback&scope=openid&state=2OlCSRBFk9K9u1kclQtBhMQYLjT-TgOweHWHGvx8HYOPRl5D_czxaduaGx14caVD.
  This link does not provide readers with information about the Quay.io project.
• Regularize project names with official names 'Quay.io'.
• Improved the phrasing in the troubleshooting section by linking the word "file" directly to its reference for better readability.

Which issue(s) this PR fixes:
none

Special notes for your reviewer:

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
  • Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. As such, feat PRs are unlikely to be accepted unless a case can be made for the feature actually being a bug fix to existing behavior.
• Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• If the change is deprecating or removing a configuration option, update the deprecated-config.yaml and deleted-config.yaml files respectively in the tools/deprecated-config-checker directory. Example PR

[JStickler]

[docs team] LGTM