db_queries.php: use the same color scheme from Dashboard

[rdwebdesign]

What does this PR aim to accomplish?

Use a single color scheme and similar order for both pages (dashboard and db_queries):

• Blue (aqua) for Total queries;
• Red for Queries blocked;
• Yellow for Percentage Blocked;

Dashboard colors:

Long-term data > Query log (db_queries.php):

How does this PR accomplish the above?

Replacing the colors on db_queries.php page.

Link documentation PRs if any are needed to support this PR

none

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[yubiuser]

Do you want to use the same wording as well?

L127 would need a change then too.

[yubiuser]

Being a Stickler:
At the dashboard Total queries -> Total Queries

[rdwebdesign]

I don't want to fix the Dashboard here because there are other similar "mixed case" items and I don't think this is related to this PR.

If we want to follow a standard, we first need to decide where we want "Capitalize Every Word" and where we want to "Capitalize only the first letter of each sentence" and then fix it everywhere.

Currently there is no standard:

[yubiuser]

Keep the dashboard as it is. It's a mess organically grown.

[pralor-bot]

This pull request has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-ftl-v5-21-web-v5-18-4-and-core-v5-15-4-released/61096/1