refactor: make shared_qobject_ptr ctor explicit

This turns issues like creating two shared ptrs from a single raw ptr
from popping up at runtime, instead making them a compile error.

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/minecraft/PackProfile.h

@@ -136,10 +136,10 @@ signals:
 
 public:
     /// get the profile component by id
-    Component * getComponent(const QString &id);
+    ComponentPtr getComponent(const QString &id);
 
     /// get the profile component by index
-    Component * getComponent(int index);
+    ComponentPtr getComponent(int index);
 
     /// Add the component to the internal list of patches
     // todo(merged): is this the best approach