Possibly fix issues

After doing testing with a test project, re-organized code to new method
of storing, as well as ensure that all Endpoint lambda's are separated
out into functions.

Large commit, will be testing.

FreeTubeSync/Model/ChangeLog.cs

@@ -0,0 +1,9 @@
+namespace FreeTubeSync.Model;
+
+public class ChangeLog
+{
+    public int Id { get; set; }
+    public string TableName { get; set; } = string.Empty;
+    public string ChangeType { get; set; } = string.Empty;
+    public DateTime ChangeTime { get; set; } = DateTime.MinValue;
+}