bootstrap-vue 2.12.0 on Node.js NPM

b-avatar: add support for badges on avatars (#5124) (a2e465b)
b-avatar: if variant is empty string, then remove spacing around image (closes #5154) (#5156) (7ff87fc)
b-calendar, b-form-datepicker: add prop weekday-header-format to specify weekday header length (closes #5171) (#5175) (8241644)
b-calendar, b-form-datepicker: add scoped slots for date navigation buttons (closes #5117) (#5147) (5f69864)
b-form-datepicker: add pass through prop date-info-fn (closes #4826) (#5150) (bf35f80)
b-form-rating: new b-form-rating custom component (#5132) (30ad7fe)
b-sidebar: add optional backdrop support (#5182) (c6375e5)
custom components: avoid using padding/margin utility classes where possible (closes #5117) (#5121) (8c6cfe0)
icons: new throb and fade animations (#5122) (bc0117c)

b-alert: fix memory leak by using the correct method to clear the countdown timeout (#5158) (7a7f33d)
b-avatar: fix button type font size inheritance (#5177) (441ebdc)
b-calendar: use Intl.NumberFormat for formatting the number in the date buttons (closes
#5171) (#5179) (cbf2cd0)
b-form-datepicker: make datepicker respect no-highlight-today prop (#5159) (c4ead33)

bootstrap-vue 2.12.0 v2.12.0 on Node.js NPM