* 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
