Don't allow KEEP_LONGER logs to get too large.

core-util/src/main/java/org/signal/core/util/SQLiteDatabaseExtensions.kt

@@ -0,0 +1,13 @@
+package org.signal.core.util
+
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+fun SupportSQLiteDatabase.getTableRowCount(table: String): Int {
+  return this.query("SELECT COUNT(*) FROM $table").use {
+    if (it.moveToFirst()) {
+      it.getInt(0)
+    } else {
+      0
+    }
+  }
+}