fix linting errors

src/components/recurrence-picker.tsx

@@ -24,7 +24,7 @@ export function RecurrencePicker({ value, onChange }: Props) {
         value.split(';').map(p => p.split('='))
       )
       return {
-        freq: (parts.FREQ as any) || 'NONE',
+        freq: parts.FREQ || 'NONE',
         interval: parts.INTERVAL ? parseInt(parts.INTERVAL, 10) : 1,
         byDay: parts.BYDAY ? parts.BYDAY.split(',') : [],
         count: parts.COUNT ? parseInt(parts.COUNT, 10) : undefined,
@@ -68,7 +68,7 @@ export function RecurrencePicker({ value, onChange }: Props) {
       <select
         className="border p-1 rounded w-full"
         value={rec.freq}
-        onChange={e => update({ freq: e.target.value as any })}
+        onChange={e => update({ freq: e.target.value as "NONE" | "DAILY" | "WEEKLY" | "MONTHLY" | undefined })}
       >
         <option value="NONE">Does not repeat</option>
         <option value="DAILY">Daily</option>