Enable keep/alive noop for Gmail

app/src/main/java/eu/faircode/email/DB.java

@@ -70,7 +70,7 @@ import javax.mail.internet.InternetAddress;
 // https://developer.android.com/topic/libraries/architecture/room.html
 
 @Database(
-        version = 299,
+        version = 300,
         entities = {
                 EntityIdentity.class,
                 EntityAccount.class,
@@ -3039,6 +3039,13 @@ public abstract class DB extends RoomDatabase {
                         db.execSQL("UPDATE account SET keep_alive_noop = 1" +
                                 " WHERE host = 'imap.mail.me.com' AND pop = " + EntityAccount.TYPE_IMAP);
                     }
+                }).addMigrations(new Migration(299, 300) {
+                    @Override
+                    public void migrate(@NonNull SupportSQLiteDatabase db) {
+                        logMigration(startVersion, endVersion);
+                        db.execSQL("UPDATE account SET keep_alive_noop = 1" +
+                                " WHERE host = 'imap.gmail.com' AND pop = " + EntityAccount.TYPE_IMAP);
+                    }
                 }).addMigrations(new Migration(998, 999) {
                     @Override
                     public void migrate(@NonNull SupportSQLiteDatabase db) {

app/src/main/res/xml/providers.xml

@@ -6,6 +6,7 @@
         domain="gmail\\.com"
         id="gmail"
         link="https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq6"
+        noop="true"
         order="1"
         type="com.google">
         <imap