Fix dependencies: Add flag-icons, tailwind directives, and postcss config

node_modules/tabbable/index.d.ts

@@ -0,0 +1,40 @@
+type FocusableElement = HTMLElement | SVGElement;
+
+export type CheckOptions = {
+  displayCheck?:
+    | 'full'
+    | 'full-native'
+    | 'legacy-full'
+    | 'non-zero-area'
+    | 'none';
+  getShadowRoot?:
+    | boolean
+    // eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents -- there is no overlap here; the function can return true/false/undefined
+    | ((node: FocusableElement) => ShadowRoot | boolean | undefined);
+};
+
+export type TabbableOptions = {
+  includeContainer?: boolean;
+};
+
+export declare function tabbable(
+  container: Element,
+  options?: TabbableOptions & CheckOptions
+): FocusableElement[];
+
+export declare function focusable(
+  container: Element,
+  options?: TabbableOptions & CheckOptions
+): FocusableElement[];
+
+export declare function isTabbable(
+  node: Element,
+  options?: CheckOptions
+): boolean;
+
+export declare function isFocusable(
+  node: Element,
+  options?: CheckOptions
+): boolean;
+
+export declare function getTabIndex(node: Element): number;