Grammar fix (#2839)

config/applications.json

@@ -445,7 +445,7 @@
         "category": "Utilities",
         "content": "Dual Monitor Tools",
         "link": "https://dualmonitortool.sourceforge.net/",
-        "description": "Dual Monitor Tools (DMT) is a FOSS app that customize handling multiple monitors and even lock the mouse on specific monitor. Useful for full screen games and apps that does not handle well a second monitor or helps the workflow."
+        "description": "Dual Monitor Tools (DMT) is a FOSS app that allows you to customize the handling of multiple monitors. Useful for fullscreen games and apps that handle a second monitor poorly and can improve your workflow."
     },
     "duplicati": {
         "category": "Utilities",