FEAT: Sidebar update to include followed streamers & categories;

FEAT: Sidebar now alters page width on open/close (DynamicPageContent);
FIX: Properly disallow shortcut keys when typing in an input field;

frontend/src/context/SidebarContext.tsx

@@ -0,0 +1,26 @@
+import { createContext, useContext, useState, ReactNode } from "react";
+
+interface SidebarContextType {
+  showSideBar: boolean;
+  setShowSideBar: (show: boolean) => void;
+}
+
+const SidebarContext = createContext<SidebarContextType | undefined>(undefined);
+
+export function SidebarProvider({ children }: { children: ReactNode }) {
+  const [showSideBar, setShowSideBar] = useState(false);
+
+  return (
+    <SidebarContext.Provider value={{ showSideBar, setShowSideBar }}>
+      {children}
+    </SidebarContext.Provider>
+  );
+}
+
+export function useSidebar() {
+  const context = useContext(SidebarContext);
+  if (context === undefined) {
+    throw new Error("useSidebar must be used within a SidebarProvider");
+  }
+  return context;
+}