macOS: the standard About panel shows the website and Discord links (#1287) (#1718)

PdfCraft > About PdfCraft is AppKit's standard panel (winit's default menu),
which takes Credits.rtf from Contents/Resources. Ship one with the lines the
in-app Help > About has: the one-sentence description, the licence, and links
to getartcraft.com and the Discord.

Co-authored-by: Tristan von Kries <tristan@MacBook-Pro-von-Tristan.local>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

packaging/macos/Credits.rtf

@@ -0,0 +1,10 @@
+{\rtf1\ansi\ansicpg1252\cocoartf2822
+{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\qc\f0\fs24\cf0
+A clean-room, open-source PDF application written in Rust.\
+MIT OR Apache-2.0.\
+\
+{\field{\*\fldinst{HYPERLINK "https://getartcraft.com"}}{\fldrslt getartcraft.com}}\
+Help and feedback: {\field{\*\fldinst{HYPERLINK "https://discord.gg/artcraft"}}{\fldrslt discord.gg/artcraft}}\
+}

packaging/macos/package.sh

@@ -103,6 +103,9 @@ mkdir -p "$APP/Contents/MacOS" "$APP/Contents/Resources"
 # Executable and icon carry the display name (CFBundleExecutable / CFBundleIconFile).
 cp "$WORK/bin/pdfcraft" "$APP/Contents/MacOS/PdfCraft"
 cp "$ROOT/assets/app-icon/pdfcraft.icns" "$APP/Contents/Resources/PdfCraft.icns"
+# The standard About panel (PdfCraft menu > About PdfCraft) shows Credits.rtf under the version:
+# the website and Discord links the in-app About dialog has (#1287).
+cp "$HERE/Credits.rtf" "$APP/Contents/Resources/Credits.rtf"
 copy_font_licences "$APP/Contents/Resources"
 # OCR models: the app finds them at Contents/MacOS/../Resources/models. Before signing, so the
 # bundle's seal covers them.