Implement follow request / confirmation UI

front/src/Stores/InteractStore.ts

@@ -0,0 +1,17 @@
+import { writable } from "svelte/store";
+
+export const followStates = {
+    off: "off",
+    requesting: "requesting",
+    active: "active",
+    ending: "ending",
+};
+
+export const followRoles = {
+    leader: "leader",
+    follower: "follower",
+};
+
+export const followStateStore = writable(followStates.off);
+export const followRoleStore = writable(followRoles.leader);
+export const followUsersStore = writable<string[]>([]);