Update flatlaf to v3 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.formdev:flatlaf-swingx	2.6 -> 3.0
com.formdev:flatlaf-jide-oss	2.6 -> 3.0
com.formdev:flatlaf-extras	2.6 -> 3.0
com.formdev:flatlaf	2.6 -> 3.0

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Release Notes

JFormDesigner/FlatLaf

v3.0

Compare Source

New features and improvements

• macOS light and dark themes: The two new themes FlatMacLightLaf and
  FlatMacDarkLaf use macOS colors and look similar to native macOS controls.
  (PRs #​533, #​612 and #​607)
• Fonts: Packaged some fonts into JARs and provide an easy way to use them
  with FlatLaf. (PRs #​545, #​614 and #​615) At the moment there are three fonts:
  • Inter (https://rsms.me/inter/) - a typeface carefully crafted & designed
    for computer screens
  • Roboto (https://fonts.google.com/specimen/Roboto) - default font on
    Android and recommended for Material Design
  • JetBrains Mono (https://www.jetbrains.com/mono) - a monospaced typeface
• Rounded selection: Optionally use rounded selection in:
  • Menus (PR #​536)
  • ComboBox (PR #​548)
  • List (PR #​547)
  • Tree (PR #​546)
• Tree: Hide default closed/opened/leaf icons by default. Set UI value
  Tree.showDefaultIcons to true to show them.
• ToolBar: Hover effect for button groups. (PR #​534)
• Icons: New modern rounded outlined icons for JFileChooser,
  JOptionPane, JPasswordField and JTree. (PR #​577)

Fixed bugs

• FileChooser: Fixed layout of (optional) accessory component and fixed too
  large right margin. (issue #​604; regression since implementing PR #​522 in
  FlatLaf 2.3)
• Tree:
  • Fixed missing tree lines (if enabled) for wide-selected rows. (issue #​598)
  • Fixed scaling of tree lines and fixed alignment to expand/collapse arrows.
  • Removed support for dashed tree lines. Tree.lineTypeDashed is now ignored.
• SwingX: Fonts in JXHeader, JXMonthView, JXTaskPane and JXTitledPanel
  were not updated when changing default font.

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