fix(ui): point import controls inward and give Google Maps its own mark

Every import button in the client wore an outgoing arrow, so the control that
pulls a booking or a place list in looked like it was about to send something
out. The places-import sheet managed to contradict itself inside one screen:
Download in the header, Upload on the row below it, Upload again on the file
step. Imports now take Download, or FileDown where the button opens a file
picker; genuine uploads and the desktop drop zones keep Upload.

The mobile places-import entry point wore an ellipsis, which promises a menu.

The "open in Google Maps" buttons drew the four-segment Google *search* G,
flattened to one colour — a glyph that reads as "run a search". They get a map
pin instead, factored into one component so the desktop and mobile copies stop
drifting apart.

Closes #2005
Closes #2006

client/src/components/Packing/PackingListPanelImportModal.tsx

@@ -1,5 +1,5 @@
 import { createPortal } from 'react-dom'
-import { Upload } from 'lucide-react'
+import { FileDown } from 'lucide-react'
 import type { PackingState } from './usePackingListPanel'
 
 export function BulkImportModal(S: PackingState) {
@@ -48,7 +48,7 @@ export function BulkImportModal(S: PackingState) {
               border: '1px dashed var(--border-primary)', borderRadius: 8, background: 'none',
               fontSize: 'calc(11px * var(--fs-scale-caption, 1))', color: 'var(--text-faint)', cursor: 'pointer', fontFamily: 'inherit',
             }}>
-              <Upload size={11} /> {t('packing.importCsv')}
+              <FileDown size={11} /> {t('packing.importCsv')}
             </button>
           </div>
           <div style={{ display: 'flex', gap: 8 }}>