fix: normalize search query whitespace and support first+last name token matching

frontend/src/components/GuestList.jsx

@@ -193,15 +193,25 @@ function GuestList({ eventId, onBack, onShowMembers }) {
 
   // Apply search and filter logic
   const filteredGuests = guests.filter(guest => {
-    // Text search - search in name, email, phone
+    // Text search — normalize whitespace first, then match token-by-token so that:
+    //   • trailing/leading spaces don't break results ("דור " == "דור")
+    //   • multiple spaces collapse to one ("דור  נחמני" == "דור נחמני")
+    //   • full-name search works ("דור נחמני" matches first="דור" last="נחמני")
     if (searchFilters.query) {
-      const query = searchFilters.query.toLowerCase()
-      const matchesQuery = 
-        guest.first_name?.toLowerCase().includes(query) ||
-        guest.last_name?.toLowerCase().includes(query) ||
-        guest.email?.toLowerCase().includes(query) ||
-        guest.phone_number?.toLowerCase().includes(query)
-      if (!matchesQuery) return false
+      const normalized = searchFilters.query.trim().replace(/\s+/g, ' ')
+      if (normalized === '') {
+        // After normalization the query is blank → treat as "no filter"
+      } else {
+        const tokens = normalized.toLowerCase().split(' ').filter(Boolean)
+        const haystack = [
+          guest.first_name  || '',
+          guest.last_name   || '',
+          guest.phone_number|| '',
+          guest.email       || '',
+        ].join(' ').toLowerCase()
+        const matchesQuery = tokens.every(token => haystack.includes(token))
+        if (!matchesQuery) return false
+      }
     }
 
     // RSVP Status filter