Add react-bootstrap and bootstrap to dependencies

[travissouthard]

Overview

Adds react-bootstrap and bootstrap to our dependencies.

Closes #26

Testing instructions

• In this branch, apply the following temporary changes:

diff --git a/src/app/src/App.tsx b/src/app/src/App.tsx
index e5e04bf..1358f17 100644
--- a/src/app/src/App.tsx
+++ b/src/app/src/App.tsx
@@ -1,3 +1,5 @@
+import Alert from 'react-bootstrap/Alert';
+
 import './App.css'
 import Map from './Map/Map'
 
@@ -7,6 +9,7 @@ function App() {
 
   return (
     <div>
+      <Alert variant={'warning'}>Bootstrap is working</Alert>
       <div className="title">THIRD PLACES PROJECT</div>
         <Map/>
     </div>

• Run docker-compose up --build, navigate to http://localhost:4321/ and ensure:
  • No warnings appear in the console or in the react logs in the terminal
  • The homepage opens correctly
  • You can see the warning text on the homepage

Checklist before merge

• Update the CHANGELOG.md
• Rebase your changes from whatever branch you're merging to

[mdarkcity]

The text does appear!

Took me a while to realize I had to import the bootstrap stylesheet to get the Alert styling (in App.tsx or main.tsx). Of course, we can override with our own styling in App.css / index.css.