feat: Add presence heartbeat for Matrix online status

- matrix-gateway: POST /internal/matrix/presence/online endpoint
- usePresenceHeartbeat hook with activity tracking
- Auto away after 5 min inactivity
- Offline on page close/visibility change
- Integrated in MatrixChatRoom component

node_modules/ignore/index.d.ts

@@ -0,0 +1,61 @@
+type Pathname = string
+
+interface TestResult {
+  ignored: boolean
+  unignored: boolean
+}
+
+export interface Ignore {
+  /**
+   * Adds one or several rules to the current manager.
+   * @param  {string[]} patterns
+   * @returns IgnoreBase
+   */
+  add(patterns: string | Ignore | readonly (string | Ignore)[]): this
+
+  /**
+   * Filters the given array of pathnames, and returns the filtered array.
+   * NOTICE that each path here should be a relative path to the root of your repository.
+   * @param paths the array of paths to be filtered.
+   * @returns The filtered array of paths
+   */
+  filter(pathnames: readonly Pathname[]): Pathname[]
+
+  /**
+   * Creates a filter function which could filter
+   * an array of paths with Array.prototype.filter.
+   */
+  createFilter(): (pathname: Pathname) => boolean
+
+  /**
+   * Returns Boolean whether pathname should be ignored.
+   * @param  {string} pathname a path to check
+   * @returns boolean
+   */
+  ignores(pathname: Pathname): boolean
+
+  /**
+   * Returns whether pathname should be ignored or unignored
+   * @param  {string} pathname a path to check
+   * @returns TestResult
+   */
+  test(pathname: Pathname): TestResult
+}
+
+export interface Options {
+  ignorecase?: boolean
+  // For compatibility
+  ignoreCase?: boolean
+  allowRelativePaths?: boolean
+}
+
+/**
+ * Creates new ignore manager.
+ */
+declare function ignore(options?: Options): Ignore
+
+declare namespace ignore {
+  export function isPathValid (pathname: string): boolean
+}
+
+export default ignore