389 fix sorting in numeric columns

[deemp]

• Closes #389

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PR-Codex overview

This PR introduces a ToDataSort type class and adds data-sort attributes to HTML elements.

Detailed summary

• Added ToDataSort type class for converting data types to Integer
• Added toDataSort implementations for Double, Percent, and Integer
• Added mkDataSortAttribute function for creating data-sort attributes
• Modified toHtmlChange function to include data-sort attributes based on the value
• Modified toHtmlReportRow function to include N/A fallback values for missing attributes

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[0crat]

@deemp Thanks for the contribution! You've earned +27 points for this: +30 as a basis; +7 for the 71 hits-of-code that you wrote; -10 for too few (0) comments. Please, keep them coming. Your running balance is +73.

[0crat]

@fizruk Thanks for the review! You've earned +22 points for this: +25 as a basis; +7 for the 71 hits-of-code that you reviewed; -10 for too few (0) comments. Your running balance is +263.