Update dependency vue-advanced-cropper to v1 (#393)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/393
Co-authored-by: renovate <renovatebot@kolaente.de>
Co-committed-by: renovate <renovatebot@kolaente.de>

src/styles/theme/variables/variables.scss

@@ -1,5 +1,6 @@
 @import 'colors';
 
+$white: #fff;
 $black: hsl(0, 0%, 4%) !default;
 $orange: #ff851b;
 $green: #00db60;