Clean up and fix build

app/src/App.tsx

@@ -98,7 +98,7 @@ const styles = (theme: Theme) => {
     },
     content: {
       width: '100vw',
-      overflowX: 'hidden',
+      overflowX: 'hidden' as 'hidden',
       backgroundColor: theme.palette.background.default,
       transition: theme.transitions.create('transform', {
         easing: theme.transitions.easing.sharp,
@@ -107,7 +107,7 @@ const styles = (theme: Theme) => {
       transform: 'translateX(0px)',
     },
     contentShift: {
-      overflowX: 'hidden',
+      overflowX: 'hidden' as 'hidden',
       width: '100vw',
       padding: 0,
       backgroundColor: theme.palette.background.default,

app/src/reducers/Theme.ts

@@ -1,11 +0,0 @@
-import { createReducer } from './lib'
-import { createMuiTheme, Theme } from '@material-ui/core'
-
-const initialState: Theme = createMuiTheme({
-  palette: {
-    type: 'dark',
-  },
-  typography: { useNextVariants: true },
-})
-
-export const theme = createReducer(initialState, {})

app/src/reducers/index.ts

@@ -5,7 +5,6 @@ import { PublishState, publishReducer } from './Publish'
 import { ConnectionState, connectionReducer } from './Connection'
 import { SettingsState, settingsReducer } from './Settings'
 import { TreeState, treeReducer } from './Tree'
-import { theme } from './theme'
 
 export enum ActionTypes {
   showUpdateNotification = 'SHOW_UPDATE_NOTIFICATION',
@@ -63,7 +62,6 @@ const tooBigReducer: Reducer<TooBigOfState | undefined, CustomAction> = (state =
 }
 
 const reducer = combineReducers({
-  theme,
   tooBigReducer,
   publish: publishReducer,
   connection: connectionReducer,