4.8.5

New features

[510945d] Update to Bootstrap 5.3 (@javiereguiluz)

Bug fixes

[015e5f8] Fix incorrect '' test in form theme causing regression (@wizhippo)
[ced0bfc] Fix a deprecation in IntlFormatter (@javiereguiluz)
[4537990] Fix the alignment of form fields in some cases (@javiereguiluz)
[a235a0a] Performance optimization in FieldCollection (@javiereguiluz)