Update UI text for TeamCity integration

What does this MR do?

Resolves #300607 (closed)

Updated the UI text for the JetBrains TeamCity integration:

• Externalizes strings for translation
• Moves help text out of the text fields (and puts it below).
• Fixes the name, as the product name does not have CI in the title, as per their documentation.
• Cleans up the instructions (I checked a few tutorials and they were all slightly different, so I tried keep it simple and avoid specifics that relate to TeamCity itself).

Screenshots (strongly suggested)

Screenshots
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Does this MR meet the acceptance criteria?

Conformity

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• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
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