feat: Add cleanup script for my-aliases.zsh tracking and update documentation

setup/setup.sh

@@ -285,13 +285,13 @@ COMPLETION_SCRIPT="$DOTFILES_DIR/completions/backup-scripts-completion.bash"
 if [ -f "$COMPLETION_SCRIPT" ]; then
     # Create completions directory in home
     mkdir -p "$HOME/.local/share/bash-completion/completions"
-    
+
     # Copy completion script to user's completion directory
     cp "$COMPLETION_SCRIPT" "$HOME/.local/share/bash-completion/completions/"
-    
+
     # Make sure it's executable
     chmod +x "$HOME/.local/share/bash-completion/completions/backup-scripts-completion.bash"
-    
+
     echo -e "${GREEN}Bash completion script installed successfully!${NC}"
 else
     echo -e "${YELLOW}Warning: Bash completion script not found at $COMPLETION_SCRIPT${NC}"