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.

vite.config.ts

@@ -1,26 +1,9 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
-import { execSync } from 'child_process'
-
-// Get version from Git tag or fallback to 'dev'
-function getGitVersion(): string {
-  try {
-    // Try to get version from git tag
-    return execSync('git describe --tags --always', { encoding: 'utf-8' }).trim()
-  } catch {
-    return 'dev'
-  }
-}
-
-const appVersion = process.env.VITE_APP_VERSION || getGitVersion()
 
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [react()],
-  // Define global constants
-  define: {
-    __APP_VERSION__: JSON.stringify(appVersion),
-  },
   // Base path - use '/' for standalone Docker deployment
   // Change to '/cabinet/' if serving from a sub-path
   base: '/',