Remove "no-extra-semi": "off" and make linter happy

apps/.eslintrc.json

@@ -34,7 +34,6 @@
         "no-constant-condition": "off",
         "no-delete-var": "off",
         "no-empty": "off",
-        "no-extra-semi": "off",
         "no-inner-declarations": "off",
         "no-mixed-spaces-and-tabs": "off",
         "no-octal": "off",

apps/gpsnav/app.js

@@ -190,7 +190,7 @@ function setButtons(){
   setWatch(nextwp.bind(null,-1), BTN1, {repeat:true,edge:"falling"});
   setWatch(doselect, BTN2, {repeat:true,edge:"falling"});
   setWatch(nextwp.bind(null,1), BTN3, {repeat:true,edge:"falling"});
-};
+}
 
 var SCREENACCESS = {
       withApp:true,

apps/hidbkbd/hid-binary-keyboard.js

@@ -95,7 +95,7 @@ function startKeyboardHID() {
   getCharacter().then(ch => {
     return sendHID(KEY[ch]);
   }).then(startKeyboardHID);
-};
+}
 
 if (settings.HID=="kb" || settings.HID=="kbmedia") {
   if (settings.HID=="kbmedia") {

apps/numerals/numerals.settings.js

@@ -1,7 +1,7 @@
 (function(back) {  
   function updateSettings() {  
     storage.write('numerals.json', numeralsSettings);
-  };
+  }
   function resetSettings() {
     numeralsSettings = {
       color:0,