Upgrade to Preact X, partially convert to using hooks (#267)

I'd like to try writing new components using hooks, and to do that I need to upgrade from preact 8 to preact X.

For reasons that are... complicated, in order to upgrade without breaking part of my build process, I had to remove the dependency on `preact-redux` altogether. This led me to write my own implementation, and as part of that I realized I could remove `createContainer` in favour of some simple hooks that use redux.

Before landing:
- [x] Investigate performance issues in the sandwich views
- [x] Investigate es-lint checks for exhaustive hook dependencies

.eslintrc.js

@@ -1,13 +1,15 @@
 module.exports = {
-  parser: 'typescript-eslint-parser',
+  parser: '@typescript-eslint/parser',
   parserOptions: {
     sourceType: 'module',
     ecmaFeatures: {
       jsx: true,
     },
   },
-  plugins: ['prettier'],
+  plugins: ['prettier', '@typescript-eslint', 'react-hooks'],
   rules: {
-    'prettier/prettier': 'error',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    'react-hooks/rules-of-hooks': 'error',
+    'react-hooks/exhaustive-deps': 'error',
   },
-};
+}