Use strict TypeScript, enable TSLint, update all types to work in strict mode.

src/components/home/index.tsx

@@ -3,34 +3,34 @@ import { h, Component } from 'preact';
 // import Switch from 'preact-material-components/Switch';
 // import 'preact-material-components/Switch/style.css';
 import * as style from './style.scss';
+import { FileObj } from '../app';
 
 type Props = {
-	files: {
-		data: any
-	}[]
+  files: FileObj[]
 };
+
 type State = {
-	active: boolean
+  active: boolean
 };
 
 export default class Home extends Component<Props, State> {
-	state: State = {
-		active: false
-	};
+  state: State = {
+    active: false
+  };
 
-	componentDidMount() {
-		setTimeout( () => {
-			this.setState({ active: true });
-		});
-	}
+  componentDidMount() {
+    setTimeout(() => {
+      this.setState({ active: true });
+    });
+  }
 
-	render({ files }, { active }) {
-		return (
-			<div class={style.home+' '+(active ? style.active : '')}>
-				{ files && files[0] && (
-					<img src={files[0].data} />
-				) }
-			</div>
-		);
-	}
+  render({ files }: Props, { active }: State) {
+    return (
+      <div class={style.home + ' ' + (active ? style.active : '')}>
+        { files && files[0] && (
+          <img src={files[0].data} />
+        ) }
+      </div>
+    );
+  }
 }