Update screenshots across GrimoireLab and its tutorial

[GeorgLink]

Many screenshots, including in the README.md file, are showing an older version, from before we switched to OpenSearch.

This issue is to update all screenshots to show the new version with the new OpenSearch interface. I don't have an exhaustive list of where outdated screenshots are, so this creates a two-step process:

1. Find outdated screenshots
2. Replace with updated screenshots

[GeorgLink]

Whoever works on this issue would either set up their own environment to take pictures, or can wait until the https://chaoss.biterg.io/ dashboard is updated on the new version and take screenshots there.

[CBID2]

I'll do it @GeorgLink

[GeorgLink]

Hi @CBID2 , are you still available to work on this? The dashboard is now in the new version and you can start.

[CBID2]

Hi @CBID2 , are you still available to work on this? The dashboard is now in the new version and you can start.

Hi @GeorgLink! Yup I still want to work on this issue.

[GeorgLink]

Awesome. Let me know if you have any questions.

…

On Thu, Sep 14, 2023 at 9:47 AM Christine Belzie ***@***.***> wrote: Hi @CBID2 <https://github.com/CBID2> , are you still available to work on this? The dashboard is now in the new version and you can start. Hi @GeorgLink <https://github.com/GeorgLink>! Yup I still want to work on this issue. — Reply to this email directly, view it on GitHub <#604 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACDTSRKJHWNNTXJKQ4YME43X2MKJHANCNFSM6AAAAAA2JNMCRM> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[CBID2]

Awesome. Let me know if you have any questions.
…
On Thu, Sep 14, 2023 at 9:47 AM Christine Belzie @.> wrote: Hi @CBID2 https://github.com/CBID2 , are you still available to work on this? The dashboard is now in the new version and you can start. Hi @GeorgLink https://github.com/GeorgLink! Yup I still want to work on this issue. — Reply to this email directly, view it on GitHub <#604 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACDTSRKJHWNNTXJKQ4YME43X2MKJHANCNFSM6AAAAAA2JNMCRM . You are receiving this because you were mentioned.Message ID: @.>

Hi @GeorgLink! :) I did the PRs. For the README, it's #607 while the one for the tutorial is #223.