Updated the wording on the warning screen for blind signing

(cherry picked from commit c6ff915)

lib_nbgl/src/nbgl_use_case.c

@@ -1137,18 +1137,16 @@ static void displayBlindWarning(nbgl_opType_t opType)
  .backAndText.text = NULL};
  nbgl_layoutCenteredInfo_t centeredInfo
  = {.icon = NULL, .text3 = NULL, .style = LARGE_CASE_INFO, .offsetY = 0, .onTop = false};
+ centeredInfo.text1 = "Security risk detected";
  if (opType == TYPE_TRANSACTION) {
- centeredInfo.text1 = "This transaction cannot be trusted";
  centeredInfo.text2
- = "Your Ledger cannot decode this transaction. If you sign it, you could be "
- "authorizing "
+ = "This transaction cannot be fully decoded. If you sign it, you could be authorizing "
  "malicious actions that can drain your wallet.\n\n"
  "Learn more: ledger.com/e8";
  }
  else {
- centeredInfo.text1 = "This message cannot be trusted";
  centeredInfo.text2
- = "Your Ledger cannot decode this message. If you sign it, you could be authorizing "
+ = "This message cannot be fully decoded. If you sign it, you could be authorizing "
  "malicious actions that can drain your wallet.\n\n"
  "Learn more: ledger.com/e8";
  }