Rename Jira Server -> Jira Data Center

[jordanh]

Issue - Enhancement

We met with the Atlassian Solutions Architecture team and they noted that Jira Server is no longer a supported product; we should rename and refresh the iconography to call Jira Server Jira Data Center

Acceptance Criteria (optional)

• Jira Server name and icon -> Jira Data Center in all places
  • Team Dash Integrations
  • Sprint Poker panel
  • Stand-ups panel
• optional: Text added to Jira Data Center integration menu that Jira Server is also supported

Estimated effort: 5 points (see CONTRIBUTING.md)

[charlesmathias]

Another in-app location to update: Plans & Billing page, in the description of Enterprise features

[Dschoordsch]

Can we continue using the "Jira Software" logo, or which one should it be? https://atlassian.design/resources/logo-library