fix:[a11y sev2] OnRowClick is not triggered on keyboard enter in DataGrid

[adamint]

🐛 Bug Report

It is required to provide a keyboard-accessible way to perform actions. In addition to clicking a row, OnRowClick must be called on keyboard enter on any cell in the row. Additionally, there must be some aria information on generated cells that signals to a screen reader that the cell is acting as a button.

💻 Repro or Code Sample

Filed as a bug report since it's an accessibility blocker, but really a feature request so no repro.

🤔 Expected Behavior

n/a

😯 Current Behavior

n/a

💁 Possible Solution

n/a

🔦 Context

WCAG 2.1 requirement

🌍 Your Environment

• OS & Device: [e.g. MacOS, iOS, Windows, Linux] on [iPhone 7, PC]
• Browser [e.g. Microsoft Edge, Google Chrome, Apple Safari, Mozilla FireFox]
• .NET and Fluent UI Blazor library Version [e.g. 8.0.2 and 4.4.1]