fastlane: improve full_description.txt

Make it easier to translate.
Make "matrix" capitalized to "Matrix" so that translators will leave it in English.
The "lovers" may be translated as "mistresses" so I changed to "your loved"

android/fastlane/metadata/android/en-US/full_description.txt

@@ -1,4 +1,4 @@
-FluffyChat is an open, nonprofit and cute matrix messenger app for Ubuntu Touch, Android and iOS.
+FluffyChat is an open, nonprofit and cute Matrix messenger app for Ubuntu Touch, Android and iOS.
 
 Open
 Opensource and open development where everyone can join.
@@ -22,11 +22,11 @@ Decentralized
 There is no "FluffyChat server" you are forced to use. Use the server you find trustworthy or host your own.
 
 Compatible
-Compatible with Element, Fractal, Nheko and all matrix messengers.
+Compatible with Element, Fractal, Nheko and all Matrix messengers.
 
 
 FluffyChat comes with a dream
 
 Imagine a world where everyone can choose the messenger they like and is still able to chat with all of their friends.
-A world where there are no companies spying on you when you send selfies to friends and lovers.
+A world where there are no companies spying on you when you send selfies to friends and your loved.
 And a world where apps are made for fluffyness and not for profit. ♥