Miscellaneous Bugfixes From My Multiplayer Branch

This is just a bunch of bugfixes I did while I was working on the Multiplayer Support PR. I know I should've kept them separate, but then I'd also be dealing with said bugs. So this PR adds most of the bugfixes I did while working on Multiplayer.

- De-globalized Pipe SFX from Pipe Cutscene (helps with lowering audio)
- De-globalized 1-up SFX for Players
- Removed an error log spam with the `ResourceSetter`s (involving connecting already connected signals)
- Made sure to insert "BaseAssets" folder into the FIRST slot in the Resource Packs array.
- Replaced `"BaseAssets"` for the above fix with `Godot.ROM_PACK_NAME`
- Removed unused `"character"` setting from `SettingsManager`
- Reset P-Switch timer when `Global.reset_values()` is called. Fixes bug when pressing a P-Switch and immediately restarting the level.
- Added Skid SFX to `AudioManager`
- Added slightly longer delay for when pausing with a controller (it can easily unpause before you press the button again)
- Null check if LevelBG is in the level or not (for added for test levels)

Scripts/Classes/Entities/Player.gd

@@ -425,7 +425,7 @@ func add_stomp_combo(award_score := true) -> void:
 				score_note_spawner.spawn_note(10000)
 			else:
 				Global.lives += 1
-				AudioManager.play_global_sfx("1_up")
+				AudioManager.play_sfx("1_up", global_position)
 				score_note_spawner.spawn_one_up_note()
 	else:
 		if award_score:
@@ -564,8 +564,6 @@ func die(pit := false) -> void:
 	visible = not pit
 	flight_meter = 0
 	dead.emit()
-	Global.p_switch_active = false
-	Global.p_switch_timer = 0
 	stop_all_timers()
 	Global.total_deaths += 1
 	sprite.process_mode = Node.PROCESS_MODE_ALWAYS
@@ -804,8 +802,6 @@ func jump() -> void:
 	gravity = JUMP_GRAVITY
 	AudioManager.play_sfx("small_jump" if power_state.hitbox_size == "Small" else "big_jump", global_position)
 	has_jumped = true
-	await get_tree().physics_frame
-	has_jumped = true
 
 func calculate_jump_height() -> float: # Thanks wye love you xxx
 	return -(JUMP_HEIGHT + JUMP_INCR * int(abs(velocity.x) / 25))