Small text updates on the SAST Config UI page

What does this MR do?

Implements #326417 (closed) which makes a few text corrections on our SAST Config UI page

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

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Availability and Testing

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

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Related to #326417 (closed)