internal: new shared_ptr and weak_ptr implementation (#5883)

moves std::shared_ptrs to a new implementation

Advantages:
- you can dereference a weak_ptr directly. This will obviously segfault on a nullptr deref if it's expired.
   - this is useful to avoid the .lock() hell where we are 100% sure the pointer _should_ be valid. (and if it isn't, it should throw.)
- weak_ptrs are still valid while the SP is being destroyed.
   - reasoning: while an object (e.g. CWindow) is being destroyed, its `weak_ptr self` should be accessible (the sp is still alive, and so is CWindow), but it's not because by stl it's already expired (to prevent resurrection)
   - this impl solves it differently. w_p is expired, but can still be dereferenced and used. Creating `s_p`s is not possible anymore, though.
   - this is useful in destructors and callbacks.

src/render/OpenGL.hpp

@@ -196,10 +196,10 @@ class CHyprOpenGLImpl {
     PHLWINDOWREF          m_pCurrentWindow; // hack to get the current rendered window
     PHLLS                 m_pCurrentLayer;  // hack to get the current rendered layer
 
-    std::map<PHLWINDOWREF, CFramebuffer, std::owner_less<PHLWINDOWREF>> m_mWindowFramebuffers;
-    std::map<PHLLSREF, CFramebuffer, std::owner_less<PHLLSREF>>         m_mLayerFramebuffers;
-    std::unordered_map<CMonitor*, SMonitorRenderData>                   m_mMonitorRenderResources;
-    std::unordered_map<CMonitor*, CFramebuffer>                         m_mMonitorBGFBs;
+    std::map<PHLWINDOWREF, CFramebuffer>              m_mWindowFramebuffers;
+    std::map<PHLLSREF, CFramebuffer>                  m_mLayerFramebuffers;
+    std::unordered_map<CMonitor*, SMonitorRenderData> m_mMonitorRenderResources;
+    std::unordered_map<CMonitor*, CFramebuffer>       m_mMonitorBGFBs;
 
     struct {
         PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES = nullptr;