fix: declare component events that can be emitted MP-873 MP-901

[emuvente]

With Vue 3 it is best practice to declare the events that can be emitted by a component using the emits option or the defineEmits method (see https://v3-migration.vuejs.org/breaking-changes/emits-option.html). This is especially important for components that emit events with the same name as native html events (click, change, update, input, etc.) because:

...Vue will now add all event listeners that are not defined as component-emitted events in the child as native event listeners to the child's root element (unless inheritAttrs: false has been set in the child's options). (https://v3-migration.vuejs.org/breaking-changes/v-on-native-modifier-removed.html)

If the events are not declared it can lead to unexpected behavior, like event listeners being called twice; first with the custom event value, and then again with an html event.

Events that are not named the same as html events behave as expected whether or not they are declared, which is why this issue was not obvious.

Here are components changed in this PR that use native html event names that we should confirm still work after these changes:

change

• src/components/Kv/KvCarousel.vue
• src/components/Kv/KvCauseSelector.vue
• src/components/Kv/KvRangeSlider.vue
• src/components/Kv/KvToggle.vue

click

• src/components/15Years/15YearsButton.vue
• src/components/Kv/KvChipClassic.vue
• src/components/Stats/StatsTable.vue
• src/pages/Autolending/WhoYoullSupportText.vue

update

• src/components/Forms/ReCaptchaEnterprise.vue
• src/components/Kv/KvCheckbox.vue
• src/components/LoansByCategory/HelpmeChoose/HelpmeChooseTrigger.vue
• src/components/LoansByCategory/HelpmeChoose/HelpmeChooseWrapper.vue
• src/pages/Autolending/CheckList.vue
• src/plugins/any-or-selected-autolending-radio-mixin.js

input

• src/components/Kv/KvCurrencyInput.vue
• src/components/Kv/KvPhoneInput.vue
• src/components/Kv/KvRangeSlider.vue
• src/components/Kv/KvVerificationCodeInput.vue

select

• src/components/LoansByCategory/HelpmeChoose/HelpmeChooseBorrowerSelector.vue

I'm not sure how the emits option is merged when it is used in a mixin, or if it works in a mixin at all, so we should also confirm that components using these mixins still work:

• src/components/LoanCards/ExpandableLoanCard/expandableLoanCardMixin.js
• src/components/LoanCards/HoverLoanCard/hoverLoanCardMixin.js
• src/plugins/add-to-basket-exp-mixin.js
• src/plugins/any-or-selected-autolending-radio-mixin.js
• src/plugins/retry-after-expired-basket-mixin.js