Enable TS strict mode in all templates and generally clean up TS references

templates/ReactReduxSpa/ClientApp/store/WeatherForecasts.ts

@@ -60,7 +60,7 @@ export const actionCreators = {
 // ----------------
 // REDUCER - For a given state and action, returns the new state. To support time travel, this must not mutate the old state.
 
-const unloadedState: WeatherForecastsState = { startDateIndex: undefined, forecasts: [], isLoading: false };
+const unloadedState: WeatherForecastsState = { forecasts: [], isLoading: false };
 
 export const reducer: Reducer<WeatherForecastsState> = (state: WeatherForecastsState, incomingAction: Action) => {
     const action = incomingAction as KnownAction;

templates/ReactReduxSpa/tsconfig.json

@@ -1,21 +1,16 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
+    "module": "es2015",
     "moduleResolution": "node",
     "target": "es5",
     "jsx": "react",
     "experimentalDecorators": true,
     "sourceMap": true,
     "skipDefaultLibCheck": true,
+    "strict": true,
     "lib": ["es6", "dom"],
-    "types": [ "webpack-env" ],
-    "paths": {
-      // Fix "Duplicate identifier" errors caused by multiple dependencies fetching their own copies of type definitions.
-      // We tell TypeScript which type definitions module to treat as the canonical one (instead of combining all of them).
-      "history": ["./node_modules/@types/history/index"],
-      "redux": ["./node_modules/@types/redux/index"],
-      "react": ["./node_modules/@types/react/index"]
-    }
+    "types": ["webpack-env"]
   },
   "exclude": [
       "bin",