public/app/plugins/*: Fix some misspell issues

public/app/plugins/datasource/logging/result_transformer.test.ts

@@ -35,7 +35,7 @@ describe('getLoglevel()', () => {
 });
 
 describe('parseLabels()', () => {
-  it('returns no labels on emtpy labels string', () => {
+  it('returns no labels on empty labels string', () => {
     expect(parseLabels('')).toEqual({});
     expect(parseLabels('{}')).toEqual({});
   });
@@ -46,7 +46,7 @@ describe('parseLabels()', () => {
 });
 
 describe('formatLabels()', () => {
-  it('returns no labels on emtpy label set', () => {
+  it('returns no labels on empty label set', () => {
     expect(formatLabels({})).toEqual('');
     expect(formatLabels({}, 'foo')).toEqual('foo');
   });

public/app/plugins/panel/graph/graph.ts

@@ -737,7 +737,7 @@ class GraphElement {
     if (min && max && ticks) {
       const range = max - min;
       const secPerTick = range / ticks / 1000;
-      // Need have 10 milisecond margin on the day range
+      // Need have 10 millisecond margin on the day range
       // As sometimes last 24 hour dashboard evaluates to more than 86400000
       const oneDay = 86400010;
       const oneYear = 31536000000;

public/app/plugins/panel/graph/jquery.flot.events.ts

@@ -54,7 +54,7 @@ export function createEditPopover(element, event, plot) {
   const eventManager = plot.getOptions().events.manager;
   if (eventManager.editorOpen) {
     // update marker element to attach to (needed in case of legend on the right
-    // when there is a double render pass and the inital marker element is removed)
+    // when there is a double render pass and the initial marker element is removed)
     markerElementToAttachTo = element;
     return;
   }