feat(refactor): code enhancements for easier Vue 3 migration (closes #…

…6124, #6139) (#6141)

* feat(refactor): code improvements for easier Vue 3 migration

* chore(deps): regenerate lockfile

* fix(build): add missing `package.json` files for private components

* chore: bump BundleWatch values

* Update progress-bar.js

* Update tab.js

* Update bv-tooltip-template.js

* Update props.js

* Update props.spec.js

* Update tabs.js

* Update tab.js

* Update progress-bar.js

* Update tbody.js

* Update td.js

* Update tfoot.js

* Update thead.js

* Update tr.js

* Update time.js

* Update bv-tooltip-template.js

* Update form-radio-check.js

* Update collapse.js

* Update collapse.js

* Update form-radio-check.js

* Update form-radio.js

* Update safe-types.js

* Update common-props.json

* Update package.json

* Update package.json

* chore: alphabetically sort component meta information

* chore(refactor): add `slots` constants for all slot names

* Update safe-types.js

* Update README.md

* Update avatar.js

* Update alert.js

* Update form-radio-check.js

* chore(docs): add `ariaControls` to common props

* Update form-datepicker.js

* Update form-timepicker.js

* Update componentdoc.vue

* chore(refactor): move all custom event names to `events` constants

* Update dropdown.js

* Update slots.js

* Update form-spinbutton.js

* Update form-rating.js

* Update modal.js

* Update sidebar.js

* Update slots.js

* Update pagination.js

* Update pagination.js

* chore(docs): add missing documentation for slots

* Update package.json

* Update componentdoc.vue

* feat(popover/tooltip): use `normalizeSlotMixin`

* Update card-img-lazy.js

* Update package.json

* Update package.json

* chore(docs): improve prop XSS warnings

* Update package.json

* Update bv-tooltip-template.js

* Update bv-popover-template.js

* Update bv-tooltip-template.js

* Update bv-popper.js

* fix: `required` prop handling

* Update tooltip.js

* Update form-text.js

* Update form-file.js

* Update form-input.js

* Update form-text.js

* Update index.js