Fix path to query archive notebook

src/components/MainPage.js

@@ -189,7 +189,7 @@ export default function MainPage() {
       </Grid>
       <Grid container spacing={1} className={styles.boxIcons}>
         <Grid item xs={3} >
-          <IconButton href='https://analytics-toolkit.nomad-coe.eu/public/user-redirect/notebooks/tutorials/query_nomad_archive.ipynb'>
+          <IconButton href='http://localhost:8888/notebooks/tutorials/query_nomad_archive.ipynb'>
             <img
               src={IconQuery}
               className={styles.topIcon}
@@ -207,7 +207,7 @@ export default function MainPage() {
               </Typography>
             </Grid>
             <Grid item xs={1} className={styles.arrowGrid}>
-              <IconButton href='https://analytics-toolkit.nomad-coe.eu/public/user-redirect/notebooks/tutorials/query_nomad_archive.ipynb'>
+              <IconButton href='http://localhost:8888/notebooks/tutorials/query_nomad_archive.ipynb'>
                 <img
                   src={ArrowIcon}
                   style={{width: '20px', zIndex: 4, position: 'relative'}}
@@ -423,7 +423,7 @@ export default function MainPage() {
 
     <Grid container spacing={1} className={styles.boxIconsBottom}>
       <Grid item xs={3}>
-        <IconButton href='https://analytics-toolkit.nomad-coe.eu/public/user-redirect/notebooks/tutorials/query_nomad_archive.ipynb'>
+        <IconButton href='http://localhost:8888/tutorials/query_nomad_archive.ipynb'>
           <img alt='Query the Archive logo' src={IconQuery2} className={styles.iconsBottom}/>
         </IconButton>
       </Grid>
@@ -438,7 +438,7 @@ export default function MainPage() {
       </Grid>
       <Grid item xs={3}>
         <Button
-          href='https://analytics-toolkit.nomad-coe.eu/public/user-redirect/notebooks/tutorials/query_nomad_archive.ipynb'
+          href='http://localhost:8888/tutorials/query_nomad_archive.ipynb'
           className={styles.buttonBottom}
           endIcon={<img alt='Arrow icon' src={ArrowIcon}/>}
         >