public: modify .htaccess to redirect nonexistent routes to index.html

public/.htaccess

@@ -0,0 +1,9 @@
+RewriteEngine On
+RewriteCond %{HTTPS} !=on
+RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]
+
+Options +SymLinksIfOwnerMatch 
+RewriteEngine On 
+RewriteCond %{REQUEST_FILENAME} !-f 
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule . /index.html [L]