docs(data-table): add Tasks example page

[drdreo]

Hey, my goal with this PR is to enhance the current examples with a tasks table.

PR Type

What kind of change does this PR introduce?

Adding more examples to the spartan docs demonstrating a complex data table for tasks.

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

Which package are you modifying?

none, just docs

What is the current behavior?

The examples in the app do not showcase complex data tables.

What is the new behavior?

I added an extra example to showcase a complex data table managing tasks (you might have seen that example before ;))

Does this PR introduce a breaking change?

• Yes
• No

Other information

I wanted to add that the reason for me pushing to use spartan in my company (and we do now in production across multiple module federated apps), was the amazing feel of working with spartan and the data table was one big selling part.
Therefore, i thought it would be nice to add a more elaborate example to show others what one can achieve with spartan.
Let me know of any improvements i shall make.