fix: inappropriate instructions for inline PII sharing consent dialog

This commit fixes inappropriate instructions displayed when collecting PII sharing consent before an inline LTI launch. Previously, the instructions said, "Click OK to have your [username (and) e-mail address] sent to a 3rd party application. Click Cancel to return to this page without sending your information." The latter sentence does not make sense in the context of an inline launch, because there is no cancel button. This commit modifies the inline PII sharing consent dialog to say, "Click OK to have your [username (and) e-mail address] sent to a 3rd party application.""