Adds more linting rules

Fixes lint issues

src/commands/diffDirectory.ts

@@ -5,7 +5,7 @@ import { ActiveEditorCommand, Commands, getCommandUri } from './common';
 import { BuiltInCommands } from '../constants';
 import { GitService } from '../gitService';
 import { Logger } from '../logger';
-import { CommandQuickPickItem, BranchesQuickPick } from '../quickPicks';
+import { BranchesQuickPick, CommandQuickPickItem } from '../quickPicks';
 
 export interface DiffDirectoryCommandCommandArgs {
     shaOrBranch1?: string;

src/commands/diffWithBranch.ts

@@ -4,7 +4,7 @@ import { ActiveEditorCommand, Commands, getCommandUri } from './common';
 import { BuiltInCommands } from '../constants';
 import { GitService, GitUri } from '../gitService';
 import { Logger } from '../logger';
-import { CommandQuickPickItem, BranchesQuickPick } from '../quickPicks';
+import { BranchesQuickPick, CommandQuickPickItem } from '../quickPicks';
 import * as path from 'path';
 
 export interface DiffWithBranchCommandArgs {

src/commands/keyboard.ts

@@ -16,8 +16,11 @@ export const keys: Keys[] = [
     '.'
 ];
 
-export declare type KeyMapping = { [id: string]: (QuickPickItem | (() => Promise<QuickPickItem>) | undefined) };
-let mappings: KeyMapping[] = [];
+export declare interface KeyMapping {
+    [id: string]: (QuickPickItem | (() => Promise<QuickPickItem>) | undefined);
+}
+
+const mappings: KeyMapping[] = [];
 
 let _instance: Keyboard;
 

src/commands/openInRemote.ts

@@ -29,7 +29,7 @@ export class OpenInRemoteCommand extends ActiveEditorCommand {
                 return command.execute();
             }
 
-            let placeHolder: string = '';
+            let placeHolder = '';
             switch (args.resource.type) {
                 case 'branch':
                     // Check to see if the remote is in the branch