Improve process table columns and memory display

scripts/build-app.sh

@@ -3,8 +3,12 @@ set -euo pipefail
 
 PROJECT_DIR="${0:A:h:h}"
 APP_DIR="$PROJECT_DIR/dist/Task Manager.app"
-CONTENTS_DIR="$APP_DIR/Contents"
 ICON_SOURCE="$PROJECT_DIR/mactaskmanager.icon"
+STAGING_ROOT="$(mktemp -d /tmp/mactaskmanager-build.XXXXXX)"
+STAGED_APP="$STAGING_ROOT/Task Manager.app"
+CONTENTS_DIR="$STAGED_APP/Contents"
+
+trap '/bin/rm -rf -- "$STAGING_ROOT"' EXIT
 
 cd "$PROJECT_DIR"
 swift build -c release
@@ -23,5 +27,12 @@ if [[ -d "$ICON_SOURCE" ]]; then
         --output-partial-info-plist "$CONTENTS_DIR/Resources/IconInfo.plist" >/dev/null
 fi
 
-codesign --force --deep --sign - "$APP_DIR" >/dev/null
+# Finder and cloud-sync metadata can make an otherwise valid app bundle
+# unsignable when rebuilding in place.
+xattr -cr "$STAGED_APP"
+codesign --force --deep --sign - "$STAGED_APP" >/dev/null
+codesign --verify --deep --strict "$STAGED_APP"
+
+mkdir -p "$PROJECT_DIR/dist"
+ditto --norsrc "$STAGED_APP" "$APP_DIR"
 print "Built $APP_DIR"