(Preview) feat(UI): RulesReport replace blazor table with fancytable

[SolidProgramming]

Summary

• ❗ Added the SoPro.FancyTable package reference and imported SoPro.FancyTable.Components.
• Replaced the existing rules report table implementation with FancyTreeTable in RulesReport.razor.
• Moved hierarchical rule rendering to a tree-row model (RuleReportTreeRow) so section headers, child rows, and expansion state can be handled by FancyTreeTable.
• Switched expand/collapse-all actions to the built-in tree table context actions (CollapseAll / ExpandAll).
• Reworked section header rows into a custom RowTemplate, including toggle buttons and descendant rule counts.
• Rebuilt the report columns as FancyColumn<RuleReportTreeRow> definitions instead of the previous inline column setup.
• Enabled FancyTable-native search/sort behavior across rule report columns.
• Added centralized localized table labels via FancyTableTextFactory and passed them into the tree table as Texts.
• Moved sticky tree action styling into shared site.css and removed the old report-specific CSS file content that was no longer needed.

[sonarqubecloud]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud