feat: implement settings menu, audio management system, and lobby UI framework

assets/sounds/arena_bg_music.wav.import

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+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://du6b246jhn0tj"
+path="res://.godot/imported/arena_bg_music.wav-12fe73cd56e22aeda5761a2108eff1b3.sample"
+
+[deps]
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+source_file="res://assets/sounds/arena_bg_music.wav"
+dest_files=["res://.godot/imported/arena_bg_music.wav-12fe73cd56e22aeda5761a2108eff1b3.sample"]
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+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=2

assets/sounds/freemode.wav.import

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+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://dh8nshb7eap2c"
+path="res://.godot/imported/freemode.wav-f4137aa9eff465cca78ac11ecfdf3ed1.sample"
+
+[deps]
+
+source_file="res://assets/sounds/freemode.wav"
+dest_files=["res://.godot/imported/freemode.wav-f4137aa9eff465cca78ac11ecfdf3ed1.sample"]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=2

assets/sounds/lobby.wav.import

@@ -0,0 +1,24 @@
+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://y2287if4tjr1"
+path="res://.godot/imported/lobby.wav-c8ff7194593e906a687cb7ee25ec6f58.sample"
+
+[deps]
+
+source_file="res://assets/sounds/lobby.wav"
+dest_files=["res://.godot/imported/lobby.wav-c8ff7194593e906a687cb7ee25ec6f58.sample"]
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+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=2

assets/sounds/stop_n_go.wav.import

@@ -0,0 +1,24 @@
+[remap]
+
+importer="wav"
+type="AudioStreamWAV"
+uid="uid://coym874yjx4f7"
+path="res://.godot/imported/stop_n_go.wav-04b2e929d323451f1207ed89f7615815.sample"
+
+[deps]
+
+source_file="res://assets/sounds/stop_n_go.wav"
+dest_files=["res://.godot/imported/stop_n_go.wav-04b2e929d323451f1207ed89f7615815.sample"]
+
+[params]
+
+force/8_bit=false
+force/mono=false
+force/max_rate=false
+force/max_rate_hz=44100
+edit/trim=false
+edit/normalize=false
+edit/loop_mode=0
+edit/loop_begin=0
+edit/loop_end=-1
+compress/mode=2