fix(keyboard-shortcuts): change copies for some descriptions (#2965)

lang/main.json

@@ -35,13 +35,13 @@
         "raiseHand": "Raise or lower your hand",
         "pushToTalk": "Push to talk",
         "toggleScreensharing": "Switch between camera and screen sharing",
-        "toggleFilmstrip": "Show or hide the videos",
-        "toggleShortcuts": "Show or hide this help menu",
+        "toggleFilmstrip": "Show or hide video thumbnails",
+        "toggleShortcuts": "Show or hide keyboard shortcuts",
         "focusLocal": "Focus on your video",
-        "focusRemote": "Focus on another caller's video",
+        "focusRemote": "Focus on another person's video",
         "toggleChat": "Open or close the chat",
         "mute": "Mute or unmute your microphone",
-        "fullScreen": "Enter or exit full screen",
+        "fullScreen": "View or exit full screen",
         "videoMute": "Start or stop your camera",
         "showSpeakerStats": "Show speaker stats"
     },