Package Effector for Arch and give it a desktop entry

packaging/arch/PKGBUILD builds the tagged release from this repository
and installs it with pacman; the version test keeps its pkgver in step
with CMakeLists.txt. A desktop entry puts the interface in the app menu.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

data/org.effector.Effector.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Type=Application
+Name=Effector
+GenericName=Image Effects
+Comment=Cascade glitch and collage effects over your photographs
+Exec=effector %F
+Icon=applications-graphics
+Terminal=false
+Categories=Graphics;2DGraphics;RasterGraphics;GTK;
+MimeType=image/jpeg;image/png;image/webp;image/tiff;image/bmp;
+Keywords=glitch;collage;scanlines;photo;effect;
+StartupNotify=true