Unified search: update people select with API calls

On change/input from user which has the effect of filtering,
 we want to send the query to the API to obtained fresh results,
 based on the databased on not just preloaded contacts.

Signed-off-by: fenn-cs <fenn25.fn@gmail.com>

core/src/components/UnifiedSearch/SearchableList.vue

@@ -32,6 +32,7 @@
 				:label="labelText"
 				trailing-button-icon="close"
 				:show-trailing-button="searchTerm !== ''"
+				@update:value="searchTermChanged"
 				@trailing-button-click="clearSearch">
 				<Magnify :size="20" />
 			</NcTextField>
@@ -126,6 +127,9 @@ export default {
 			this.clearSearch()
 			this.opened = false
 		},
+		searchTermChanged(term) {
+			this.$emit('search-term-change', term)
+		},
 	},
 }
 </script>

core/src/views/UnifiedSearchModal.vue

@@ -55,6 +55,7 @@
 				<SearchableList :label-text="t('core', 'Search people')"
 					:search-list="userContacts"
 					:empty-content-text="t('core', 'Not found')"
+					@search-term-change="debouncedFilterContacts"
 					@item-selected="applyPersonFilter">
 					<template #trigger>
 						<NcButton>
@@ -198,6 +199,7 @@ export default {
 			results: [],
 			contacts: [],
 			debouncedFind: debounce(this.find, 300),
+			debouncedFilterContacts: debounce(this.filterContacts, 300),
 			showDateRangeModal: false,
 			internalIsVisible: false,
 		}