bug: Add missing strings to translation files (alexjustesen#2416)

Co-authored-by: Alex Justesen <[email protected]>

Author: svenvg93

lang/en/results.php

@@ -70,4 +70,6 @@
     'select_server_helper' => 'Leave empty to run the speedtest without specifying a server. Blocked servers will be skipped.',
     'manual_servers' => 'Manual servers',
     'closest_servers' => 'Closest servers',
+    'run_speedtest' => 'Run Speedtest',
+    'start' => 'Start',
 ];