Expands Notice Boards For Persistency (#21211)

## About PR
This PR re-sprites and expands notice boards. 
With the persistence update I expect an increase in utilizing notice
boards. The current ones are quite old and severely limited by only
allowing five pieces of paper tacked onto them.
So let us change that:
(updated final iteration)
> <img width="1083" height="412" alt="image"
src="https://github.com/user-attachments/assets/112f19fe-2fec-4bb1-b276-138301e7b9c5"
/>

Close up of the glass overlay:
> <img width="370" height="164" alt="image"
src="https://github.com/user-attachments/assets/c8dbde23-7a52-497c-b43a-927598829725"
/>

Regular notice boards now support up to twenty (20) pieces of highly
informative pieces of paper pinned up by the crew.
Command (lockable) notice boards support up to six (6) pieces of very
important information by your beloved departmental heads.

### FAQ
Q: Why is there a discrepancy between the command and regular notice
boards?
A: Command is expected to pin up actually important information. The
incentive is that command is a bit more conscious what they pin in
these, now that they persist through rounds.

Q: Why twenty for the regular board?
A: Super full notice boards are funny. I may add even more, depending on
how long I need to finish the code.

Q: Why is there stuff in the screenshots redacted?
A: It is for a feature for the command notice boards but I am not sure
yet if it is desirable or practical to have.

Q: Why does your code look so bad?
A: Sorry :( I put up the PR so I get help or co-authored by people who
actually know what they are doing.

> [!IMPORTANT]
> The new notice boards have not been mapped in yet! 😃

---------

Signed-off-by: KingOfThePing <43940569+KingOfThePing@users.noreply.github.com>
Co-authored-by: FlamingLily <80451102+FlamingLily@users.noreply.github.com>

code/modules/research/xenoarchaeology/misc.dm

@@ -1,47 +1,3 @@
-
-//---- Noticeboard
-
-/obj/structure/noticeboard/anomaly
-	notices = 5
-	icon_state = "nboard05"
-
-/obj/structure/noticeboard/anomaly/New()
-	//add some memos
-	var/obj/item/paper/P = new()
-	P.name = "Memo RE: proper analysis procedure"
-	P.info = "<br>We keep test dummies in pens here for a reason, so standard procedure should be to activate newfound alien artifacts and place the two in close proximity. Promising items I might even approve monkey testing on."
-	P.stamped = list(/obj/item/stamp/rd)
-	P.overlays = list("paper_stamped_rd")
-	src.contents += P
-
-	P = new()
-	P.name = "Memo RE: materials gathering"
-	P.info = "Corasang,<br>the hands-on approach to gathering our samples may very well be slow at times, but it's safer than allowing the blundering miners to roll willy-nilly over our dig sites in their mechs, destroying everything in the process. And don't forget the escavation tools on your way out there!<br>- R.W"
-	P.stamped = list(/obj/item/stamp/rd)
-	P.overlays = list("paper_stamped_rd")
-	src.contents += P
-
-	P = new()
-	P.name = "Memo RE: ethical quandaries"
-	P.info = "Darion-<br><br>I don't care what his rank is, our business is that of science and knowledge - questions of moral application do not come into this. Sure, so there are those who would employ the energy-wave particles my modified device has managed to abscond for their own personal gain, but I can hardly see the practical benefits of some of these artifacts our benefactors left behind. Ward--"
-	P.stamped = list(/obj/item/stamp/rd)
-	P.overlays = list("paper_stamped_rd")
-	src.contents += P
-
-	P = new()
-	P.name = "READ ME! Before you people destroy any more samples"
-	P.info = "how many times do i have to tell you people, these xeno-arch samples are del-i-cate, and should be handled so! careful application of a focussed, concentrated heat or some corrosive liquids should clear away the extraneous carbon matter, while application of an energy beam will most decidedly destroy it entirely - like someone did to the chemical dispenser! W, <b>the one who signs your paychecks</b>"
-	P.stamped = list(/obj/item/stamp/rd)
-	P.overlays = list("paper_stamped_rd")
-	src.contents += P
-
-	P = new()
-	P.name = "Reminder regarding the anomalous material suits"
-	P.info = "Do you people think the anomaly suits are cheap to come by? I'm about a hair trigger away from instituting a log book for the damn things. Only wear them if you're going out for a dig, and for god's sake don't go tramping around in them unless you're field testing something, R"
-	P.stamped = list(/obj/item/stamp/rd)
-	P.overlays = list("paper_stamped_rd")
-	src.contents += P
-
 //---- Bookcase
 
 /obj/structure/bookcase/manuals/xenoarchaeology