516 compatibility for browsers (#20652)

this is a bit of

https://github.com/cmss13-devs/cmss13/pull/8646
https://github.com/cmss13-devs/cmss13/pull/8875
https://github.com/cmss13-devs/cmss13/pull/8606
https://github.com/cmss13-devs/cmss13/pull/8607
https://github.com/cmss13-devs/cmss13/pull/8359
https://github.com/cmss13-devs/cmss13/pull/7860
( and thus https://github.com/ParadiseSS13/Paradise/pull/25105
https://github.com/ParadiseSS13/Paradise/pull/25205
https://github.com/ParadiseSS13/Paradise/pull/25363
https://github.com/ParadiseSS13/Paradise/pull/26423 and
https://github.com/ParadiseSS13/Paradise/pull/26433 )
https://github.com/tgstation/tgstation/pull/89766

in order to work properly - using the efficient storage method, instead
of the byond json method - github pages needs to be enabled and built
from the gh-pages branch. because yeah

---------

Co-authored-by: harryob <55142896+harryob@users.noreply.github.com>

code/modules/client/preference_setup/general/03_body.dm

@@ -998,7 +998,7 @@ GLOBAL_LIST_INIT(valid_bloodtypes, list(
 	dat += "</center>"
 
 
-	user << browse(dat.Join(), "window=species;size=700x400")
+	user << browse(HTML_SKELETON(dat.Join()), "window=species;size=700x400")
 
 /// This proc verifies if a sprite accessory can be put on a robolimb, checking its manufacturer.
 /datum/category_item/player_setup_item/general/body/proc/verify_robolimb_appropriate(datum/sprite_accessory/S)

code/modules/client/preference_setup/general/06_flavor.dm

@@ -244,7 +244,7 @@
 	HTML += "<br>"
 	HTML += "<hr />"
 	HTML += "<tt>"
-	user << browse(HTML, "window=flavor_text;size=430x300")
+	user << browse(HTML_SKELETON(HTML), "window=flavor_text;size=430x300")
 	return
 
 /datum/category_item/player_setup_item/general/flavor/proc/SetFlavourTextRobot(mob/user)
@@ -261,5 +261,5 @@
 		HTML += "<br>"
 	HTML += "<hr />"
 	HTML += "<tt>"
-	user << browse(HTML, "window=flavour_text_robot;size=430x300")
+	user << browse(HTML_SKELETON(HTML), "window=flavour_text_robot;size=430x300")
 	return