refactor(cabinet): migrate inline SVG icons to the central react-icons set

Audit-driven sweep: replaced 168 hand-written inline <svg> icons across 77
files with the central Phosphor (react-icons/pi) components from
@/components/icons, preserving each icon's size classes and colour (dynamic
stroke colours via the parent's currentColor, RefreshIcon's spinning state,
conditional rotate-180 chevrons).

Verified: tsc + vite build + eslint clean; an adversarial diff review of all
changed files found the replacements correct (70 files clean, 0 blockers).
Remaining inline <svg> dropped from 262 to ~95 — the survivors are legitimate
non-icons (brand/provider logos, loading spinners & framer-motion animations,
charts/sparklines, background decoration) plus a few ambiguous glyphs.

src/pages/AdminWithdrawals.tsx

@@ -4,6 +4,7 @@ import { useQuery } from '@tanstack/react-query';
 import { useTranslation } from 'react-i18next';
 import { withdrawalApi, AdminWithdrawalItem } from '../api/withdrawals';
 import { AdminBackButton } from '../components/admin';
+import { ChevronRightIcon } from '@/components/icons';
 import { useCurrency } from '../hooks/useCurrency';
 import { formatDate, getWithdrawalStatusBadge, getRiskColor } from '../utils/withdrawalUtils';
 
@@ -150,19 +151,7 @@ export default function AdminWithdrawals() {
                   </div>
 
                   {/* Chevron right */}
-                  <svg
-                    className="mt-1 h-5 w-5 shrink-0 text-dark-500"
-                    fill="none"
-                    viewBox="0 0 24 24"
-                    stroke="currentColor"
-                    strokeWidth={2}
-                  >
-                    <path
-                      strokeLinecap="round"
-                      strokeLinejoin="round"
-                      d="M8.25 4.5l7.5 7.5-7.5 7.5"
-                    />
-                  </svg>
+                  <ChevronRightIcon className="mt-1 h-5 w-5 shrink-0 text-dark-500" />
                 </div>
               </button>
             );