remove manually created typing d ts file (#249)

* Rename file

".d.ts" files are files that are automatically generated during compilation (in case option is set) and shouldn't be created manually.

* Export types and interfaces

* Add missing imports

src/components/navbar/ReaderNavBar.tsx

@@ -25,6 +25,7 @@ import Collapse from '@mui/material/Collapse';
 import { styled } from '@mui/system';
 import useBackTo from 'util/useBackTo';
 import ReaderSettingsOptions from 'components/reader/ReaderSettingsOptions';
+import { IChapter, IManga, IMangaCard, IReaderSettings } from 'typings';
 
 const Root = styled('div')(({ theme }) => ({
     top: 0,