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/manga/ResumeFAB.tsx

@@ -10,6 +10,7 @@ import { Fab } from '@mui/material';
 import { Link } from 'react-router-dom';
 import { PlayArrow } from '@mui/icons-material';
 import { BACK } from 'util/useBackTo';
+import { IChapter } from 'typings';
 
 interface ResumeFABProps {
     chapter: IChapter;