Migration of jsx files to tsx 2 (#850)

This is to continue the work of migrating all the jsx files into tsx
files.
The MO is basically described here: #848.

About 7 files to go...

src/components/InputString.tsx

@@ -5,13 +5,14 @@ export type InputStringProps = {
   value?: string
   style?: object
   default?: string
-  onChange?(...args: unknown[]): unknown
-  onInput?(...args: unknown[]): unknown
+  onChange?(value: string | undefined): unknown
+  onInput?(value: string | undefined): unknown
   multi?: boolean
   required?: boolean
   disabled?: boolean
   spellCheck?: boolean
   'aria-label'?: string
+  title?: string
 };
 
 type InputStringState = {
@@ -72,6 +73,7 @@ export default class InputString extends React.Component<InputStringProps, Input
       style: this.props.style,
       value: this.state.value === undefined ? "" : this.state.value,
       placeholder: this.props.default,
+      title: this.props.title,
       onChange: (e: React.BaseSyntheticEvent<Event, HTMLInputElement, HTMLInputElement>) => {
         this.setState({
           editing: true,