Update the sessions table (#1030)

* Update the sessions table

* Add index on user_id

app/Database/migrations/2021_02_11_044305_update_sessions_table.php

@@ -0,0 +1,20 @@
+<?php
+
+use App\Contracts\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * Bring the sessions table in line with the latest
+ */
+class UpdateSessionsTable extends Migration
+{
+    public function up()
+    {
+        Schema::table('sessions', function (Blueprint $table) {
+            $table->string('id')->change()->primary();
+            $table->index('user_id');
+            $table->index('last_activity');
+        });
+    }
+}