Clean up .desktop file: remove unnecessary localization, fix English translation, use consistent captitalization of "tint2" (with a lowercase "t").

tint2.desktop

@@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
 Encoding=UTF-8
-Name=Tint2 panel
+Name=tint2 panel
 Name[am]=ፓነል tint2
 Name[ar]=الشريط tint2
 Name[ast]=Panel tint2
@@ -12,7 +12,7 @@ Name[da]=Panel tint2
 Name[de]=Leiste tint2
 Name[dz]=པེ་ནཱལ། tint2
 Name[el]=Ταμπλό tint2
-Name[en_GB]=Panel tint2
+Name[en]=tint2 panel
 Name[eo]=Panelo tint2
 Name[es]=Panel tint2
 Name[et]=Ääreriba tint2
@@ -36,7 +36,6 @@ Name[nn]=Panel tint2
 Name[pa]=ਪੈਨਲ tint2
 Name[pl]=Panel tint2
 Name[pt]=Painel tint2
-Name[pt_BR]=Painel tint2
 Name[ro]=Panou tint2
 Name[ru]=Панель tint2
 Name[si]=පුවරුව tint2
@@ -48,12 +47,10 @@ Name[tr]=Panel tint2
 Name[ug]=panel tint2
 Name[uk]=Панель tint2
 Name[ur]=پینل tint2
-Name[ur_PK]=پینل tint2
 Name[vi]=Panel tint2
-Name[zh_CN]=面板 tint2
+Name[zh]=面板 tint2
-Name[zh_TW]=面板 tint2
 Comment=Lightweight panel
-Comment[fr_FR]=Panel léger
+Comment[fr]=Panel léger
 Comment[pl]=Lekki panel
 Exec=tint2
 Icon=taskbar