feat: taskbar title shows file name, icon sizes 16-256, settings order, fixed 4-col size grid (v1.9.0)

CHANGELOG.md

@@ -4,6 +4,20 @@ All notable changes to imajViewer are documented in this file.
 
 ## [Unreleased]
 
+## [1.9.0] - 2026-10-31
+
+### Added
+- Taskbar/alt-tab title now shows the opened image's file name (falls back to
+  "imajViewer" when no image is open).
+- Full hicolor icon size set (16–256 px) instead of only 64 px, so small-icon
+  contexts (Thunar "Open With", Xfce app menu) keep the symbol visible.
+
+### Changed
+- `install.sh` generates the full icon size set and rewrites the hicolor
+  index; uninstall hint updated.
+- Settings size grid is now a fixed 4-column layout (the wide/narrow
+  transposition introduced in this release was removed).
+
 ## [1.8.0] - 2026-10-31
 
 ### Added