Improve recurrent transactions visibility in the transaction-list page

[enrique-lozano]

Prerequisites

• [X] I have read the Contributing Guidelines.
• [X] I agree to follow the Code of Conduct.
• [X] I have searched for existing issues that already report this problem, without success.
• [X] I have updated the app to the last released version.

Current Behavior

With the current app version, we can only see the next item that will come from a recurring transaction, without any extra information. Also, there is no easy way to distinguish future transactions or pending transactions from the rest.

Expected Behavior

It is proposed to do something similar to what the excellent 1Money app is doing right now:

Here we have the should consider the following points:

• We should introduce a banner with the number of pending transactions that we have
• The page should be initially scrolled to this banner, hiding everything above it
• In case of recurrent transactions, only the first value of the recurrence should be displayed, as before
• All the transactions above this new banner should be greyed-out
• We have to study if past pending transactions should change from what we have now. That is, apply change can only apply to future pending transactions or to all the pending transactions. I think we should start by applying this to only the future transactions

Steps to Reproduce

To generate a good test for this functionality, it would be good to create at least two recurring transactions, with a small periodicity (weekly or daily) or without an end date. With this, we could obtain a few future transactions and try to filter by dates and other parameters

Additional Information

This issue is based on the discussion generated in #243, with @shinebrillant, @vincius0000 and @enrique-lozano as participants. We should also consider the more in-deep analysis made here.

As always, if you want to collaborate on this, PRs are accepted.

[vincius0000]

I'm excited to work on it, not sure when I will start to, perhaps tomorrow. Shall I comment when I start just to be sure two devs don't work on the same?

[enrique-lozano]

Yes please, and assign yourself the task if you want too :)

Thanks a lot!!

[vincius0000]

Last time I've checked I did not have permission to assign myself, must be repository permission settings 🤔

[enrique-lozano]

Done 😊