Fix KDE not opening links in mime type associated application

mimetypedetection.patch

--- a/src/widgets/krun.cpp	2020-12-19 00:28:01.038900544 +0100
+++ b/src/widgets/krun.cpp	2020-12-19 00:28:13.410897823 +0100
@@ -387,7 +387,7 @@
     m_followRedirections = true;
     m_window = window;
     m_asn = asn;
-    q->setEnableExternalBrowser(true);
+    q->setEnableExternalBrowser(false);
 
     // Start the timer. This means we will return to the event
     // loop and do initialization afterwards.
--- a/src/gui/openurljob.cpp	2020-12-19 00:42:00.227781136 +0100
+++ b/src/gui/openurljob.cpp	2020-12-19 00:42:14.238780191 +0100
@@ -68,7 +68,7 @@
     bool m_deleteTemporaryFile = false;
     bool m_runExecutables = false;
     bool m_showOpenOrExecuteDialog = false;
-    bool m_externalBrowserEnabled = true;
+    bool m_externalBrowserEnabled = false;
     bool m_followRedirections = true;
 
 private: