added place holder text for filter tags for server

Signed-off-by: Satya <[email protected]>

Author: TS0713

mcpgateway/templates/admin.html

@@ -1571,7 +1571,7 @@ <h2 class="text-2xl font-bold dark:text-gray-200">
               type="text"
               id="search-servers"
               data-testid="search-input"
-              placeholder="Search servers..."
+              placeholder="Search servers via tags..."
               class="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-indigo-500 focus:ring-indigo-500 dark:bg-gray-900 dark:placeholder-gray-300 dark:text-gray-300"
               oninput="filterServerTable(this.value)"
             />

mcpgateway/templates/mcp_registry_partial.html

@@ -138,7 +138,7 @@ <h2 class="text-2xl font-bold flex items-center">
           type="text"
           id="search-input"
           name="search"
-          placeholder="Search servers..."
+          placeholder="Search servers via tags..."
           value="{{ filter_params.search or '' }}"
           class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-200 dark:placeholder-gray-400 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500"
           hx-get="{{ root_path }}/admin/mcp-registry/partial"