remove grid view for streams

- Reduces surface area
- Reduces options for people (less cognitive load)
- One way to use the product
- List view works better for keyboard shortcuts
- List view has basics such as recency

js/src/stores/view-mode-store.ts

@@ -1,36 +0,0 @@
-import { create } from "zustand";
-
-type ViewMode = "list" | "grid";
-
-const STORAGE_KEY = "llink:view-mode";
-
-function loadViewMode(): ViewMode {
-  try {
-    const stored = localStorage.getItem(STORAGE_KEY);
-    if (stored === "grid") return "grid";
-    return "list";
-  } catch {
-    return "list";
-  }
-}
-
-function saveViewMode(mode: ViewMode) {
-  try {
-    localStorage.setItem(STORAGE_KEY, mode);
-  } catch {
-    // Storage unavailable
-  }
-}
-
-interface ViewModeState {
-  viewMode: ViewMode;
-  setViewMode: (mode: ViewMode) => void;
-}
-
-export const useViewModeStore = create<ViewModeState>((set) => ({
-  viewMode: loadViewMode(),
-  setViewMode: (mode) => {
-    saveViewMode(mode);
-    set({ viewMode: mode });
-  },
-}));