Refactor Dockerfile and Vite configuration to remove VITE_APP_VERSION and streamline build process

- Removed VITE_APP_VERSION from Dockerfile and GitHub workflows.
- Simplified Vite configuration by eliminating the Git version retrieval function and global constant for app version.
- Updated ColorPicker and other components to enhance accessibility with aria-labels.
- Introduced unique identifiers for buttons in the AppEditorModal for better React key management.
- Improved error handling in the Login component to provide user-friendly messages without exposing sensitive data.

src/components/InsufficientBalancePrompt.tsx

@@ -152,7 +152,7 @@ function PaymentMethodModal({ paymentMethods, onSelect, onClose }: PaymentMethod
         {/* Header */}
         <div className="flex items-center justify-between px-4 py-3 bg-dark-800/50">
           <span className="font-semibold text-dark-100">{t('balance.selectPaymentMethod')}</span>
-          <button onClick={onClose} className="p-1.5 rounded-lg hover:bg-dark-700 text-dark-400">
+          <button onClick={onClose} className="p-1.5 rounded-lg hover:bg-dark-700 text-dark-400" aria-label="Close">
             <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
               <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
             </svg>