fix: Correctly check color support

Currently checking the color support based on `ANSICON`, `ConEmuANSI=ON` or
`TERM=xTerm` is done only for Widows. I could not find any reason as to
why and it does not make much sense as it is. Especially if we consider
that `TERM=xTerm` is a term check and we do another one (not Widows
specific) which is `TERM_PROGRAM=Hyper`.

This potentially fixes #45917.

This also looks more in line with the intent (based on the title) of
!27831 and !27794.

src/Symfony/Component/Console/Output/StreamOutput.php

@@ -97,18 +97,17 @@ protected function hasColorSupport(): bool
             return false;
         }
 
-        if ('Hyper' === getenv('TERM_PROGRAM')) {
+        if (\DIRECTORY_SEPARATOR === '\\'
+            && \function_exists('sapi_windows_vt100_support'
+            && @sapi_windows_vt100_support($this->stream)
+        ) {
             return true;
         }
 
-        if (\DIRECTORY_SEPARATOR === '\\') {
-            return (\function_exists('sapi_windows_vt100_support')
-                && @sapi_windows_vt100_support($this->stream))
-                || false !== getenv('ANSICON')
-                || 'ON' === getenv('ConEmuANSI')
-                || 'xterm' === getenv('TERM');
-        }
-
-        return stream_isatty($this->stream);
+        return 'Hyper' === getenv('TERM_PROGRAM')
+            || false !== getenv('ANSICON')
+            || 'ON' === getenv('ConEmuANSI')
+            || 'xterm' === getenv('TERM')
+            || stream_isatty($this->stream);
     }
 }