fix(android): add pillow to requirements buildozer spec

buildozer.spec

@@ -13,7 +13,7 @@ package.domain = com.mdsanima.rt.go.app.android
 source.dir = ./src/
 
 # (list) Source files to include (let empty to include all the files)
-source.include_exts = py,png,jpg,kv,atlas, json
+source.include_exts = py,png,jpg,kv,atlas,json
 
 # (list) List of inclusions using pattern matching
 #source.include_patterns = assets/*,images/*.png
@@ -36,7 +36,7 @@ version.filename = %(source.dir)s/__init__.py
 
 # (list) Application requirements
 # comma separated e.g. requirements = sqlite3,kivy
-requirements = python3, kivy==2.0.0, kivymd==0.104.2, plyer==1.4.3, kivy-garden, openssl, humanfriendly==8.2
+requirements = python3, kivy==2.0.0, kivymd==0.104.2, plyer==1.4.3, kivy-garden, openssl, humanfriendly==8.2, pillow
 
 # (str) Custom source folders for requirements
 # Sets custom source for any requirements with recipes