Update Airport admin page

ui/src/components/AirportDrop/index.tsx

@@ -0,0 +1,69 @@
+import { useRef, useState } from 'react';
+import { IconCloudUpload, IconDownload, IconX } from '@tabler/icons-react';
+import { Button, Group, Text, useMantineTheme } from '@mantine/core';
+import { Dropzone } from '@mantine/dropzone';
+import classes from './AirportDrop.module.css';
+import { importAirports } from '@lib/airport.ts';
+
+export function AirportDrop() {
+  const theme = useMantineTheme();
+  const openRef = useRef<() => void>(null);
+  const [loading, setLoading] = useState(false);
+
+  return (
+    <div className={classes.wrapper}>
+      <Dropzone
+        loading={loading}
+        openRef={openRef}
+        onDrop={async (files) => {
+          if (files.length === 0) return;
+          setLoading(true);
+          try {
+            const formData = new FormData();
+            files.forEach(file => {
+              formData.append('files', file, file.name);
+            })
+            await importAirports(formData);
+          } catch (error) {
+            console.error('Upload error:', error);
+          } finally {
+            setLoading(false);
+          }
+        }}
+        className={classes.dropzone}
+        radius="md"
+        accept={['application/JSON']}
+        maxSize={30 * 1024 ** 2}
+      >
+        <div style={{ pointerEvents: 'none' }}>
+          <Group justify="center">
+            <Dropzone.Accept>
+              <IconDownload size={50} color={theme.colors.blue[6]} stroke={1.5} />
+            </Dropzone.Accept>
+            <Dropzone.Reject>
+              <IconX size={50} color={theme.colors.red[6]} stroke={1.5} />
+            </Dropzone.Reject>
+            <Dropzone.Idle>
+              <IconCloudUpload size={50} stroke={1.5} className={classes.icon} />
+            </Dropzone.Idle>
+          </Group>
+
+          <Text ta="center" fw={700} fz="lg" mt="xl">
+            <Dropzone.Accept>Drop files here</Dropzone.Accept>
+            <Dropzone.Reject>Json file less than 30mb</Dropzone.Reject>
+            <Dropzone.Idle>Upload JSON</Dropzone.Idle>
+          </Text>
+
+          <Text className={classes.description}>
+            Drag&apos;n&apos;drop files here to upload. We can accept only <i>.json</i> files that
+            are less than 30mb in size.
+          </Text>
+        </div>
+      </Dropzone>
+
+      <Button className={classes.control} size="md" radius="xl" onClick={() => openRef.current?.()}>
+        Select files
+      </Button>
+    </div>
+  );
+}