Make all api fields snake_case (#105)

Change all snake/camelCase mix and match to camelCase everywhere

Fix conversion to not interfer with service interceptors

Add dynamic conversion between camelCase and snake_case to services

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/105

src/components/sharing/linkSharingAuth.vue

@@ -28,7 +28,7 @@
 				auth.linkShareAuth(this.$route.params.share)
 					.then((r) => {
 						this.loading = false
-						router.push({name: 'showList', params: {id: r.list_id}})
+						router.push({name: 'showList', params: {id: r.listId}})
 					})
 					.catch(e => {
 						this.error(e, this)