Sorting by coverage % is sorting as a string, not numerically

[silent-e]

Describe the bug
Using localeCompare for sorting defaults to sorting each value as a string. You need to sort numerically here. See the MDN docs on how to use localeCompare.

String sort

Numeric sort

To Reproduce
Steps to reproduce the behavior:

1. Open a coverage report where you have mixed coverage. 0%, 100%, and some in between
2. Click on the % coverage header a few times to see how the sort changes
3. Note how it will probably read 0%, 100%, then the others in order

Expected behavior
You expect 0%, then increasing coverage percents up to the 100% at the end of the list, or beginning depending on if you're ascending or descending

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: macOS
• Browser: Chrome
• Version: 78.0.3904.97

Gem Version
v0.4.0

Additional context
Simple fix. just change the localeCompare line to …

    return reverse * (a.cells[col].textContent.trim().localeCompare(b.cells[col].textContent.trim(), undefined, {numeric: true}));

This is how I got the Numeric Sort screenshot above.

[chiefpansancolt]

Will close this issue once new version is release later this week!

[chiefpansancolt]

@silent-e these updates are now live in version 0.5.0