#59715: Fix blocks RTL style loading issue

[mukeshpanchal27]

Trac ticket: https://core.trac.wordpress.org/ticket/59715

The RTL style issue emerged following the r56524 commit in 6.3.2. Following this commit, the full path for the RTL style is now being used, as exemplified by /var/www/src/wp-includes/blocks/navigation/style-rtl.css.

Within the $files variable, we maintain a list of styles that must be loaded alongside the block path, for instance, blockname/blockstyle.css.

However, an issue arises with the condition:

if ( is_rtl() && in_array( $rtl_file, $files, true ) ) {

This condition is failing, leading to the failure to load the RTL style. Instead, the normal style for the block is loaded.

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

[SergeyBiryukov]

Thanks for the PR! Merged in r57028.