Rename the "Last HTML View" to Intel PerfSpect

[prashantbytesyntax]

Steps to reproduction

1. Select html option on the right

since it provides Intel PerfSpect report, rename to " PerfSpect metrics view"

[mlim19]

@prashantbytesyntax, we intentionally avoided to name it with Perfspect view because any HTML view can be visualized in future. It's flexible enough to show other HTML view, not tied with Perfspect tool.