How to rewrite requests to index.php to parent directory - regex

Question

I have a website with two .htaccess files one in the projects root directory and one in the /Project Root/Public/ directory and I want to rewrite direct requests to "http://localhost/Project Root/index.php" to "http://localhost/Project Root/" how would I go about doing this?
My current .htaccess(s):
Project Root .htaccess:
RewriteEngine on
RewriteCond %{REQUEST_URI} !^public
RewriteRule ^(.*)$ public/$1 [L]
/Project Root/Public/.htaccess
RewriteEngine On
RewriteCond %{THE_REQUEST} \s(?:/+(.+/))?public/ [NC]
RewriteRule ^ /%1 [L,R=301,NE]
DirectoryIndex index.php
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI}::$0 ^(/.+)/(.*)::\2$
RewriteRule .* - [E=BASE:%1]
RewriteCond %{HTTP:Authorization} .+
RewriteRule ^ - [E=HTTP_AUTHORIZATION:%0]
RewriteCond %{ENV:REDIRECT_STATUS} =""
RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ %{ENV:BASE}/index.php [L]
</IfModule>
<IfModule !mod_rewrite.c>
<IfModule mod_alias.c>
RedirectMatch 307 ^/$ /index.php/
</IfModule>
</IfModule>

Answer 1

Have your Project Root .htaccess like this:
RewriteEngine On
RewriteCond %{THE_REQUEST} \s/+([^/]+/)?index\.php[?\s] [NC]
RewriteRule ^ /%1 [L,R=301,NC,NE]
RewriteRule .* public/$0 [L]
Make sure you clear your browser cache before testing.