Fix activity bar icon not shown

Author: JamesCamel

src/icon/activity-bar.svg renamed to images/icon/activity-bar.svg

@@ -70,7 +70,7 @@
 				{
 					"id": "mdTree",
 					"title": "HackMD Notes",
-					"icon": "src/icon/activity-bar.svg"
+					"icon": "images/icon/activity-bar.svg"
 				}
 			]
 		},
@@ -102,26 +102,26 @@
 				"title": "Refresh",
 				"category": "HackMD",
 				"icon": {
-					"light": "src/icon/light/refresh-dark.svg",
-					"dark": "src/icon/dark/refresh-light.svg"
+					"light": "images/icon/light/refresh-dark.svg",
+					"dark": "images/icon/dark/refresh-light.svg"
 				}
 			},
 			{
 				"command": "HackMD.showPreview",
 				"title": "Open Preview",
 				"category": "HackMD",
 				"icon": {
-					"light": "src/icon/light/view-dark.svg",
-					"dark": "src/icon/dark/view-light.svg"
+					"light": "images/icon/light/view-dark.svg",
+					"dark": "images/icon/dark/view-light.svg"
 				}
 			},
 			{
 				"command": "HackMD.showPreviewAndEditor",
 				"title": "Open Preview to the Side",
 				"category": "HackMD",
 				"icon": {
-					"light": "src/icon/light/column-dark.svg",
-					"dark": "src/icon/dark/column-light.svg"
+					"light": "images/icon/light/column-dark.svg",
+					"dark": "images/icon/dark/column-light.svg"
 				}
 			},
 			{
@@ -134,8 +134,8 @@
 				"title": "Open note on HackMD",
 				"category": "HackMD",
 				"icon": {
-					"light": "src/icon/light/Browser-dark.png",
-					"dark": "src/icon/dark/Browser-light.png"
+					"light": "images/icon/light/Browser-dark.png",
+					"dark": "images/icon/dark/Browser-light.png"
 				}
 			}
 		],