Move "core" folder out of "features" into "base"

src/base/Base.types.ts

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { ReactNode } from 'react';
+import { ParseKeys } from 'i18next';
+
+export enum GridLayout {
+    Compact = 0,
+    Comfortable = 1,
+    List = 2,
+}
+
+export enum DirectionOffset {
+    PREVIOUS = -1,
+    NEXT = 1,
+}
+
+export type NullAndUndefined<T> = T | null | undefined;
+
+export type TranslationKey = ParseKeys;
+
+interface DisplayDataTranslationKey {
+    isTitleString?: never;
+    title: TranslationKey;
+    icon: ReactNode;
+}
+
+interface DisplayDataString {
+    isTitleString: true;
+    title: string;
+    icon: ReactNode;
+}
+
+type DisplayData = DisplayDataTranslationKey | DisplayDataString;
+
+export type ValueToDisplayData<Value extends string | number> = Record<Value, DisplayData>;
+
+export interface MultiValueButtonBaseProps<Value extends string | number> {
+    tooltip?: string;
+    value: Value;
+    defaultValue?: Value;
+    values: Value[];
+    setValue: (value: Value) => void;
+    valueToDisplayData: ValueToDisplayData<Value>;
+}
+
+export interface MultiValueButtonDefaultableProps<Value extends string | number>
+    extends OptionalProperty<MultiValueButtonBaseProps<Value>, 'value'> {
+    isDefaultable?: boolean;
+    onDefault?: () => void;
+}
+
+export type MultiValueButtonProps<Value extends string | number> =
+    | (MultiValueButtonBaseProps<Value> & PropertiesNever<MultiValueButtonDefaultableProps<Value>>)
+    | MultiValueButtonDefaultableProps<Value>;
+
+export enum ScrollOffset {
+    BACKWARD,
+    FORWARD,
+}
+
+export enum ScrollDirection {
+    X,
+    Y,
+    XY,
+}
+
+export enum SearchParam {
+    TAB = 'tab',
+    QUERY = 'query',
+}