Fix color variable display in 500 tracker output

ISSUE: Example text was showing raw ANSI codes like:
  \033[2mExample: domain.com...\033[0m

FIX: Added DIM and BOLD color variable definitions
  - These weren't being loaded from common-functions.sh
  - Now examples display properly with dim gray text

modules/website/500-error-tracker.sh

@@ -10,6 +10,10 @@
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 source "$SCRIPT_DIR/lib/common-functions.sh"
 
+# Ensure color variables are set
+DIM='\033[2m'
+BOLD='\033[1m'
+
 print_banner "Fast 500 Error Tracker"
 
 echo ""