Add PHPDocs generated by ChatGPT,

add additional clarification to some functions,
add addNewsComment function and API, currently untested and not implemented in the client,
fix a bunch of stuff that PHPStorm pointed out

lib/inliner.php

@@ -1,6 +1,13 @@
 <?php
-
-function inlineLocalStylesFromHref($inputString): string
+/**
+ * Processes an HTML string to inline all linked stylesheets by replacing <link> tags
+ * with corresponding <style> tags containing the CSS content.
+ * Might be broken, currently disabled in the config
+ *
+ * @param string $inputString The HTML content containing <link> tags to stylesheets.
+ * @return string The modified HTML content with stylesheets inlined within <style> tags.
+ */
+function inlineLocalStylesFromHref(string $inputString): string
 {
     $pattern = '/<link[^>]*?\srel=["\']?stylesheet["\'].*?\shref=["\']?\/(.*?)["\'][^>]*?>/i';
 
@@ -30,8 +37,15 @@ function inlineLocalStylesFromHref($inputString): string
         return "<style>$cssContent</style>";
     }, $inputString);
 }
-
-function inlineScriptFromSrc($inputString): string
+/**
+ * Processes an HTML string to inline all external JavaScript files by replacing <script src="..."> tags
+ * with <script> tags containing the JavaScript content.
+ * Might be broken, currently disabled in the config
+ *
+ * @param string $inputString The HTML content containing <script src=""> tags.
+ * @return string The modified HTML content with external scripts inlined within <script> tags.
+ */
+function inlineScriptFromSrc(string $inputString): string
 {
     $pattern = '/<script.*?src=["\']\/(.*?)["\'].*?>\s*<\/script>/i';
 
@@ -44,8 +58,14 @@ function inlineScriptFromSrc($inputString): string
         return "<script>$jsContent</script>";
     }, $inputString);
 }
-
-function minifyCss($css): string
+/**
+ * Minifies CSS content by removing comments, unnecessary whitespaces, semicolons, and optimizing other aspects of the stylesheet.
+ * Might be broken, currently disabled in the config
+ *
+ * @param string $css The original CSS content.
+ * @return string The minified CSS content.
+ */
+function minifyCss(string $css): string
 {
     // Remove comments
     $css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css);
@@ -64,8 +84,14 @@ function minifyCss($css): string
 
     return trim($css);
 }
-
-function minifyJs($js): string
+/**
+ * Minifies JavaScript content by removing comments, unnecessary whitespaces, and optimizing spaces around operators.
+ * Might be broken, currently disabled in the config
+ *
+ * @param string $js The original JavaScript content.
+ * @return string The minified JavaScript content.
+ */
+function minifyJs(string $js): string
 {
 
     // Remove newlines and tabs