Update all add-on links

[brishtibheja]

I found two with broken links. For another, gave links to Shige's add on as it has better reviews.
But why do we link people to an add-on for resetting cards? That can be done using the "Reset" option in browser. Should we link to the browsing section of manual instead? As of now, I just changed the links.

[Danika-Dakika]

I think in the docs we need to be careful not to be seen as giving preferential ranking to one dev's add-ons over another for no reason. You mention "better reviews," but neither of the substitute versions had better reviews that the original versions (and one didn't even have the correct functionality).

[brishtibheja]

About the advice for f.pixelSize(), fontHeight I am not sure applies to this add-on. If you or dae can check what it does, I can either remove this or replace this with something else if needed.

[dae]

The concerns about favouritism are reasonable, but in the add note id case, we'll want to rewrite that section anyway.

The linked add-on removes card review history, which Anki doesn't do itself. Or have I misunderstood the question?

Are you both happy for me to merge this?

[brishtibheja]

I originally linked a different one which resets most counters but doesn't permanently remove anything. It's all good now.

[dae]

Thank you both!