Android export + portrait orientation

Project builds for android now. Also, I changed the orientation and
resolution of the app to be portrait mode, as it fits better on mobile.

project.godot

@@ -20,6 +20,13 @@ config/icon="res://icon.svg"
 
 MorseState="*res://autoloads/morse_state.gd"
 
+[display]
+
+window/size/viewport_width=786
+window/size/viewport_height=1024
+window/handheld/orientation=1
+
 [rendering]
 
 renderer/rendering_method="mobile"
+textures/vram_compression/import_etc2_astc=true

scenes/main.tscn

@@ -48,6 +48,7 @@ layout_mode = 2
 color = Color(0, 0, 0, 1)
 
 [node name="MorseButton" type="Button" parent="VBoxContainer"]
+custom_minimum_size = Vector2(0, 100)
 layout_mode = 2
 text = "MORSE"