Modernize the default Chords look and feel

[Oleg-Melnik]

Summary

Modernizes the default Chords desktop look and feel with a compact Material 3 theme inspired by Fluent and Atlassian business applications.

Changes

• adds light and dark Chords palettes, compact typography, shapes, dimensions, interaction tokens, and application-level override points
• introduces a reusable application-view scaffold and updates shell and navigation styling
• aligns dialogs, tables, dropdowns, inputs, wizards, tooltips, and related components with consistent theme defaults
• preserves existing component and window signatures while adding theme-aware appearance customization
• documents theme customization and adds theme and table coverage
• bumps Chords to 2.0.0-SNAPSHOT.110 and updates the generated reports

Important notes

• existing applications receive intentional visual changes without consumer code changes, including table alignment, padding, and row density; tooltip styling; dialog backdrops and frames; progress overlays; wizard sizing; outlined form fields; and validation-message spacing
• WithTooltip now defaults to inverse-surface theme colors, a 6 dp rounded shape, compact padding, and a wider maximum width; its original five-parameter JVM signature remains available through a compatibility overload
• LightweightWindow now defaults to the theme scrim, surface, large shape, 16 dp shadow, and outline-variant border; its original constructor signatures remain available, while the extended appearance constructor requires all frame values to avoid overload ambiguity
• the initial light or dark palette follows the operating system appearance at application startup; live switching requires an ApplicationTheme override