revert: remove booleanish

I added booleanish in a previous commit thinking about replacing boolean with booleanish. I think this is a good idea, but is best left for the future

Author: VividLemon

packages/bootstrap-vue-3/src/BootstrapVue.ts

@@ -217,7 +217,6 @@ export {
 export type {
   InputSize,
   ColorVariant,
-  Booleanish,
   BreadcrumbItem,
   LinkTarget,
   ButtonVariant,

packages/bootstrap-vue-3/src/composables/index.ts

@@ -1,5 +1,4 @@
 import useAlignment from './useAlignment'
-import useBooleanish from './useBooleanish'
 import {createBreadcrumb, useBreadcrumb} from './useBreadcrumb'
 import useEventListener from './useEventListener'
 import {
@@ -18,7 +17,6 @@ import useId from './useId'
 
 export {
   useAlignment,
-  useBooleanish,
   createBreadcrumb,
   useBreadcrumb,
   useEventListener,
@@ -38,7 +36,6 @@ export {
 
 export default {
   useAlignment,
-  useBooleanish,
   createBreadcrumb,
   useBreadcrumb,
   useEventListener,
@@ -55,6 +52,3 @@ export default {
   normalizeOptions,
   useId,
 }
-
-// Export only the types that are classified by props. Export that the type even if it's complex counterpart uses inline type
-// Finally, for props, add booleanish as an option, and create a util that resolves it. Or possibly a composable with computed to cache it?

packages/bootstrap-vue-3/src/composables/useBooleanish.ts

@@ -1,6 +1,5 @@
 export type {default as Alignment} from './Alignment'
 export type {default as Animation} from './Animation'
-export type {default as Booleanish} from './Booleanish'
 export type {default as BootstrapVueOptions} from './BootstrapVueOptions'
 export type {default as BreadcrumbItem} from './BreadcrumbItem'
 export type {BreadcrumbItemObject} from './BreadcrumbItem'

packages/bootstrap-vue-3/src/types/Booleanish.d.ts

@@ -45,7 +45,6 @@ import normalizeSlot from './normalizeSlot'
 import {stringToInteger, toFloat, toInteger, toPercison} from './number'
 import {assign, defineProperties, defineProperty, omit, readonlyDescriptor} from './object'
 import {pluckProps, suffixPropName} from './props'
-import resolveBooleanish from './resolveBooleanish'
 import {isLink} from './router'
 import {startCase, toString, upperFirst} from './stringUtils'
 
@@ -59,7 +58,6 @@ export {
   startCase,
   toString,
   upperFirst,
-  resolveBooleanish,
   attemptFocus,
   contains,
   stringToInteger,
@@ -134,7 +132,6 @@ export default {
   suffixPropName,
   toPercison,
   assign,
-  resolveBooleanish,
   defineProperties,
   defineProperty,
   omit,