Add documentation on GH pages (#85)

* Add documentation on GH pages

* Expand classes for doc generation

* Update docs

* .nojekyll

* Update Identicon.tsx

* Update Demo.tsx

* Update KeyPair.tsx

* Export specific icons

* Convert tests to TypeScript

packages/ui-settings/src/Settings.ts

@@ -0,0 +1,78 @@
+// Copyright 2017-2019 @polkadot/ui-settings authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import store from 'store';
+
+import { ENDPOINTS, LANGUAGES, UIMODES, UITHEMES } from './defaults';
+import { Options, SettingsStruct } from './types';
+
+export class Settings implements SettingsStruct {
+  private _apiUrl: string;
+  private _i18nLang: string;
+  private _uiMode: string;
+  private _uiTheme: string;
+
+  constructor () {
+    const settings = store.get('settings') || {};
+
+    this._apiUrl = settings.apiUrl || process.env.WS_URL || ENDPOINTS[0].value;
+    this._i18nLang = settings.i18nLang || LANGUAGES[0].value;
+    this._uiMode = settings.uiMode || process.env.UI_MODE || UIMODES[0].value;
+    this._uiTheme = settings.uiTheme || process.env.UI_THEME || UITHEMES[0].value;
+  }
+
+  get apiUrl (): string {
+    return this._apiUrl;
+  }
+
+  get i18nLang (): string {
+    return this._i18nLang;
+  }
+
+  get uiMode (): string {
+    return this._uiMode;
+  }
+
+  get uiTheme (): string {
+    return this._uiTheme;
+  }
+
+  get availableNodes (): Options {
+    return ENDPOINTS;
+  }
+
+  get availableLanguages (): Options {
+    return LANGUAGES;
+  }
+
+  get availableUIModes (): Options {
+    return UIMODES;
+  }
+
+  get availableUIThemes (): Options {
+    return UITHEMES;
+  }
+
+  get (): SettingsStruct {
+    return {
+      apiUrl: this._apiUrl,
+      i18nLang: this._i18nLang,
+      uiMode: this._uiMode,
+      uiTheme: this._uiTheme
+    };
+  }
+
+  set (settings: Partial<SettingsStruct>): void {
+    this._apiUrl = settings.apiUrl || this._apiUrl;
+    this._i18nLang = settings.i18nLang || this._i18nLang;
+    this._uiMode = settings.uiMode || this._uiMode;
+    this._uiTheme = settings.uiTheme || this._uiTheme;
+
+    store.set('settings', this.get());
+  }
+}
+
+const settings = new Settings();
+
+export default settings;