accessbility wave2

[YingXue]

Accessbility wave2

1. Fix wrong aria label
2. Fix luminosity ratio for links
3. Switch all usages of DetailsList to ResizableDetailsList (following Fluent's recommendation and sample code: https://developer.microsoft.com/en-us/fluentui#/controls/web/detailslist/keyboardcolumnreorderresize) which enable resize through keyboard (see below)

• [x] If introducing new functionality or modified behavior, are they backed by unit tests?
• [x] Have all unit tests passed locally? (by running npm run test command)
• [x] Have you updated the README.md with new screenshots if significant changes have been made?
• [x] Have you update the package version if the current version in package.json is not higher than the version released?