Bring back title

src/components/InputString.tsx

@@ -12,6 +12,7 @@ export type InputStringProps = {
   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,

src/components/_DataProperty.tsx

@@ -316,6 +316,7 @@ export default class DataProperty extends React.Component<DataPropertyProps, Dat
             <div className="maputnik-data-spec-property-input">
               <InputString
                 value={this.props.value?.property}
+                title={"Input a data property to base styles off of."}
                 onChange={propVal => this.changeDataProperty("property", propVal)}
               />
             </div>