refactor(ui): move Toggle component to Composition API + TS (#3281)

* refactor(frontend): move Toggle component to Composition API + TS

**Toggle.vue**:
- Enable composition API and TS
- Added `disabled` to props
- Remove redundant `checked`
- Replace `modelValue` and `emits` with `defineModel` compiler macro

**Others**:
- Replace emit handling and `model-value` with `v-model` where simple logic was used
  - Not `FeatureFlagSettings.vue` (contained custom code on receiving emit)
  - Not `Mods.vue` (contained custom code on receiving emit)
- Remove redundant `checked` attribute

* fix(app): toggles not updating value

apps/frontend/src/pages/admin/billing/[id].vue

@@ -40,12 +40,7 @@
           </span>
           <span> Whether or not the subscription should be unprovisioned on refund. </span>
         </label>
-        <Toggle
-          id="unprovision"
-          :model-value="unprovision"
-          :checked="unprovision"
-          @update:model-value="() => (unprovision = !unprovision)"
-        />
+        <Toggle id="unprovision" v-model="unprovision" />
       </div>
       <div class="flex gap-2">
         <ButtonStyled color="brand">
@@ -114,7 +109,7 @@
   </div>
 </template>
 <script setup>
-import { Badge, NewModal, ButtonStyled, DropdownSelect, Toggle } from "@modrinth/ui";
+import { Badge, ButtonStyled, DropdownSelect, NewModal, Toggle } from "@modrinth/ui";
 import { formatPrice } from "@modrinth/utils";
 import { CheckIcon, XIcon } from "@modrinth/assets";
 import { products } from "~/generated/state.json";