fix: use different logic for buefy/oruga for product lookup keydown

i could have swore the new logic worked with buefy..but today it didn't

tailbone/templates/products/lookup.mako

@@ -56,7 +56,11 @@
             <b-field grouped>
 
               <b-input v-model="searchTerm" 
-                       ref="searchTermInput" />
+                       ref="searchTermInput"
+                       % if not request.use_oruga:
+                           @keydown.native="searchTermInputKeydown"
+                       % endif
+                       />
 
               <b-button class="control"
                         type="is-primary"
@@ -243,8 +247,10 @@
                 lookupShowDialog: false,
 
                 searchTerm: null,
-                searchTermInputElement: null,
                 searchTermLastUsed: null,
+                % if request.use_oruga:
+                    searchTermInputElement: null,
+                % endif
 
                 searchProductKey: true,
                 searchVendorItemCode: true,
@@ -259,14 +265,18 @@
             }
         },
 
-        mounted() {
-            this.searchTermInputElement = this.$refs.searchTermInput.$el.querySelector('input')
-            this.searchTermInputElement.addEventListener('keydown', this.searchTermInputKeydown)
-        },
+        % if request.use_oruga:
 
-        beforeDestroy() {
-            this.searchTermInputElement.removeEventListener('keydown', this.searchTermInputKeydown)
-        },
+            mounted() {
+                this.searchTermInputElement = this.$refs.searchTermInput.$el.querySelector('input')
+                this.searchTermInputElement.addEventListener('keydown', this.searchTermInputKeydown)
+            },
+
+            beforeDestroy() {
+                this.searchTermInputElement.removeEventListener('keydown', this.searchTermInputKeydown)
+            },
+
+        % endif
 
         methods: {