add .gitignore and run project updater

.gitignore

@@ -0,0 +1 @@
+**.godot

godot/Atmosphere Showcase/icon.png.import

@@ -1,34 +1,34 @@
 [remap]
 
 importer="texture"
-type="StreamTexture"
-path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+type="CompressedTexture2D"
+uid="uid://dwbla6tvur4yc"
+path="res://.godot/imported/icon.png-487276ed1e3a0c39cad0279d744ee560.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
 source_file="res://icon.png"
-dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+dest_files=["res://.godot/imported/icon.png-487276ed1e3a0c39cad0279d744ee560.ctex"]
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
-compress/hdr_mode=0
+compress/hdr_compression=1
 compress/bptc_ldr=0
 compress/normal_map=0
-flags/repeat=0
-flags/filter=true
-flags/mipmaps=false
-flags/anisotropic=false
-flags/srgb=2
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
 process/fix_alpha_border=true
 process/premult_alpha=false
-process/HDR_as_SRGB=false
-process/invert_color=false
-stream=false
-size_limit=0
-detect_3d=true
-svg/scale=1.0
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

godot/Atmosphere Showcase/project.godot

@@ -6,17 +6,16 @@
 ;   [section] ; section goes between []
 ;   param=value ; assign values to parameters
 
-config_version=4
+config_version=5
 
-_global_script_classes=[  ]
-_global_script_class_icons={
-
-}
+_global_script_classes=[]
+_global_script_class_icons={}
 
 [application]
 
 config/name="Atmosphere Showcase"
 run/main_scene="res://Demo.tscn"
+config/features=PackedStringArray("4.0", "Double Precision")
 config/icon="res://icon.png"
 
 [display]