v2 lazy rundown (#317)

* chore: update related deps

* refactor: memoise entrypoints

* refactor: store selectors

* refactor: improve component performance

* chore: remove unused dependencies

* refactor: improve component dnd

apps/client/src/common/stores/cursorStore.ts

@@ -0,0 +1,24 @@
+import { create } from 'zustand';
+
+import { booleanFromLocalStorage } from '../utils/localStorage';
+
+type CursorStore = {
+  cursor: number;
+  isCursorLocked: boolean;
+  toggleCursorLocked: (newValue?: boolean) => void;
+  moveCursorTo: (index: number) => void;
+};
+
+const cursorLockedKey = 'ontime-cursor-islocked';
+
+export const useCursor = create<CursorStore>()((set) => ({
+  cursor: 0,
+  isCursorLocked: booleanFromLocalStorage(cursorLockedKey, false),
+  toggleCursorLocked: (newValue?: boolean) =>
+    set((state) => {
+      const val = typeof newValue === 'undefined' ? !state.isCursorLocked : newValue;
+      localStorage.setItem(cursorLockedKey, String(val));
+      return { isCursorLocked: val };
+    }),
+  moveCursorTo: (index: number) => set(() => ({ cursor: index })),
+}));