Optimize like and download queries for models and worlds

[AlejoAsd]

Queries used to update like and download counts for models and worlds have been updated to use SQL expressions instead of computing and updating values inside Fuel. This change improves like endpoint performance and also removes the considerable cpu spike when downloading models.

One important note is that using an expression to update the value does not return the total like/download count. This value was previously returned by the endpoints and this is no longer the case. I will double check that this does not impact our app client.

[german-e-mas]

One important note is that using an expression to update the value does not return the total like/download count. This value was previously returned by the endpoints and this is no longer the case. I will double check that this does not impact our app client.

Thanks! From the top of my head some changes will be necessary.

[marcoshuck]

Thanks for the changes Alejo. We should make the test job pass in order to merge this PR. Other than that, this looks good to be merged.

[AlejoAsd]

Something else broke tests. I've run tests on main and they are having the same issues as this PR. Will create a separate PR to fix tests, merge into this, and then merge this.

Edit: this was due to an issue on my local setup. Tests failing are in fact due to changes made in this PR. Will fix tests here instead.

[marcoshuck]

Something else broke tests. I've run tests on main and they are having the same issues as this PR. Will create a separate PR to fix tests, merge into this, and then merge this.

Got it, thanks. Let me know if there's anything I can do to help.