fix(migration): preserve default values for language boolean columns

The migration was modifying LgRemoveSpaces, LgSplitEachChar, and
LgRightToLeft columns without preserving their DEFAULT '0' values,
causing INSERT statements that omit these columns to fail.

Author: HugoFara

db/migrations/19700102_000001_lwt_fork.sql

@@ -11,9 +11,9 @@ ALTER TABLE archivedtexts
 
 ALTER TABLE languages
     MODIFY COLUMN LgID tinyint(3) unsigned NOT NULL AUTO_INCREMENT,
-    MODIFY COLUMN LgRemoveSpaces tinyint(1) unsigned NOT NULL,
-    MODIFY COLUMN LgSplitEachChar tinyint(1) unsigned NOT NULL,
-    MODIFY COLUMN LgRightToLeft tinyint(1) unsigned NOT NULL;
+    MODIFY COLUMN LgRemoveSpaces tinyint(1) unsigned NOT NULL DEFAULT '0',
+    MODIFY COLUMN LgSplitEachChar tinyint(1) unsigned NOT NULL DEFAULT '0',
+    MODIFY COLUMN LgRightToLeft tinyint(1) unsigned NOT NULL DEFAULT '0';
 
 ALTER TABLE sentences
     MODIFY COLUMN SeID mediumint(8) unsigned NOT NULL AUTO_INCREMENT,