Update MWC to 0.26.1 (#234)

package.json

@@ -21,15 +21,15 @@
     "typescript": "^4.3.2"
   },
   "dependencies": {
-    "@material/mwc-button": "^0.25.3",
-    "@material/mwc-checkbox": "^0.25.3",
-    "@material/mwc-circular-progress": "^0.25.3",
-    "@material/mwc-dialog": "^0.25.3",
-    "@material/mwc-formfield": "^0.25.3",
-    "@material/mwc-icon-button": "^0.25.3",
-    "@material/mwc-textfield": "^0.25.3",
+    "@material/mwc-button": "^0.26.1",
+    "@material/mwc-checkbox": "^0.26.1",
+    "@material/mwc-circular-progress": "^0.26.1",
+    "@material/mwc-dialog": "^0.26.1",
+    "@material/mwc-formfield": "^0.26.1",
+    "@material/mwc-icon-button": "^0.26.1",
+    "@material/mwc-textfield": "^0.26.1",
     "esp-web-flasher": "^5.1.1",
-    "improv-wifi-serial-sdk": "^2.1.0",
+    "improv-wifi-serial-sdk": "^2.2.2",
     "lit": "^2.0.0",
     "tslib": "^2.3.1"
   }

tsconfig.json

@@ -14,7 +14,8 @@
     "forceConsistentCasingInFileNames": true,
     "strict": true,
     "suppressImplicitAnyIndexErrors": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "importHelpers": true
   },
   "include": ["src/*"]
 }