2.9.2

✨✨✨ React-admin has reached 8,000 stars on GitHub! Thank you all for your support. ✨✨✨

• Fix spinner position in Login and Save buttons (3276) (Luwangel)
• Fix slow List view when fetching lots of rows (3275) (slecoustre)
• Fix <BooleanInput> does not show errors (3271) (fargito)
• Fix <Query> component sending request on every update (3267) (fargito)
• Fix duplicated entry in Reference documentation (3259) (mabhub)
• Fix duplicated code formatting rules (3258) (fargito)
• Fix empty list after changing the items per page count (3257) (sagarbakhtar)
• Fix <RichTextInput> does not use theme color to show focus (3231) (cherniavskii)
• Add Bulgarian translation link (3260) (ptodorov0)