Tweak main activity graph

[DL6ER]

What does this implement/fix?

The permitted column in the main graph was actually the sum of forwarded and other queries. As cache is arguably somehow permitted, too, make the difference between them clear.

Note

Needs pi-hole/FTL#1884 to be checked out

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Related issue or feature (if applicable): https://discourse.pi-hole.net/t/dashboard-graphs-dont-match/68263

Pull request in docs with documentation (if applicable): N/A

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1. I have read and understood the contributors guide, as well as this entire template. I understand which branch to base my commits and Pull Requests against.
2. I have commented my proposed changes within the code.
3. I am willing to help maintain this change if there are issues with it later.
4. It is compatible with the EUPL 1.2 license
5. I have squashed any insignificant commits. (git rebase)

Checklist:

• The code change is tested and works locally.
• I based my code and PRs against the repositories developmental branch.
• I signed off all commits. Pi-hole enforces the DCO for all contributions
• I signed all my commits. Pi-hole requires signatures to verify authorship
• I have read the above and my PR is ready for review.

[DL6ER]

Has been confirmed working on the related Discourse thread

[rdwebdesign]

In v5 the first graphic had only 2 items.

Now it has 4 items. I will improve themes to make easier to distinguish them.

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[sawsanders]

I’ve been on this branch for a month or so now. Other than the colors @rdwebdesign wants to fix, it has been running just fine and I haven’t noticed any other issues.

Thanks!!

[rdwebdesign]

Note:

The code is working.
The new colors and visual improvements can be added in a future PR.

[github-actions]

Conflicts have been resolved.

[PromoFaux]

Approving based on testing used comments