Few CTF changes. (#77533)

## About The Pull Request
- Fixed that if you chose to press a cross while toggling instagib mode
it will react as `Yes` instead of just canceling
- Added description for assault class (with shotgun and rocket gloves)
so you know that you have faster moving speed and lover armor.
- Fixed that when you already chose a team and try to click on other
teams spawners you'll be asked to consider other teams to make them
equal.
- Decreased time of recharge start delay from 20 seconds to 12, because
when it takes soo much to regen your shield its just faster to die and
respawn with a new one.
- Added 1.7 scope to marksmans rifle.
- Little cleanup.

**Everything is arguable.**
**Ask if something is unclear or confusing.**
## Why It's Good For The Game
Less buggs, less wondering why do you die in 1 hit and others don't, a
little bit of consistency.
## Changelog
🆑
qol: CTF assault class' (with shotgun and rocket gloves) description now
mentions that it has low armor and increased moving speed.
balance: Decreased CTF recharge start delay for shields from 20 seconds
to 12 seconds.
balance: Marksmans rifle now has 1.7 scope.
fix: When toggling instagib mode for CTF and pressing a cross now will
just cancel instead of proceeding.
fix: When clicking on other CTF teams spawners and after you already
chose your team no more will ask you to join some other team to make
them even.
/🆑

code/modules/capture_the_flag/ctf_controller.dm

@@ -48,7 +48,7 @@
 	for(var/team in teams)
 		var/obj/machinery/ctf/spawner/spawner = teams[team].spawner
 		notify_ghosts("[spawner.name] has been activated!", source = spawner, action = NOTIFY_ORBIT, header = "CTF has been activated")
-	
+
 /datum/ctf_controller/proc/stop_ctf()
 	ctf_enabled = FALSE
 	clear_control_points()
@@ -115,7 +115,7 @@
 		if(user.ckey in enemy_team_members)
 			to_chat(user, span_warning("No switching teams while the round is going!"))
 			return FALSE
-		if(friendly_team_members.len > enemy_team_members.len)
+		else if(friendly_team_members.len > enemy_team_members.len)
 			to_chat(user, span_warning("[team_color] has more team members than [team]! Try joining [team] team to even things up."))
 			return FALSE
 	return TRUE
@@ -208,7 +208,7 @@
 		var/datum/component/ctf_player/ctf_player = team_members[player]
 		ctf_player.end_game()
 	return ..()
-	
+
 ///Increases this teams number of points by the provided amount.
 /datum/ctf_team/proc/score_points(points_scored)
 	points += points_scored