Use tRPC in other group pages (#249)

* Use tRPC in group edition + group layout

* Use tRPC in group modals

* Use tRPC in group stats

* Use tRPC in group activity

src/trpc/routers/groups/update.procedure.ts

@@ -0,0 +1,16 @@
+import { updateGroup } from '@/lib/api'
+import { groupFormSchema } from '@/lib/schemas'
+import { baseProcedure } from '@/trpc/init'
+import { z } from 'zod'
+
+export const updateGroupProcedure = baseProcedure
+  .input(
+    z.object({
+      groupId: z.string().min(1),
+      groupFormValues: groupFormSchema,
+      participantId: z.string().optional(),
+    }),
+  )
+  .mutation(async ({ input: { groupId, groupFormValues, participantId } }) => {
+    await updateGroup(groupId, groupFormValues, participantId)
+  })