PHPStan prepare exceptions (#6037)

Take advantage of
https://phpstan.org/blog/bring-your-exceptions-under-control

Minimum changes to pass `tooWideThrowType` and `implicitThrows`.

Revert some mistakes from:
https://github.com/FreshRSS/FreshRSS/pull/5504
Preparation needed before new PRs of the same type:
https://github.com/FreshRSS/FreshRSS/pull/5962

Fix several wrong PHPDocs and catches:

> Method ... has ...Exception in PHPDoc @throws tag but it's not thrown.

> Dead catch - ...Exception is never thrown in the try block.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/Exceptions/FeedException.php b/app/Exceptions/FeedException.php
index 343aca5d6..26d042f6f 100644
--- a/app/Exceptions/FeedException.php
+++ b/app/Exceptions/FeedException.php
@@ -1,6 +1,6 @@
 <?php
 declare(strict_types=1);
 
-class FreshRSS_Feed_Exception extends Exception {
+class FreshRSS_Feed_Exception extends Minz_Exception {
 
 }