…et. Few features disabled, still needs work

make empty destructors default, same effect. do we even need to define them?
Fix uses platform dependent header files defining what gets passed to the different update functions
All "fix me"s eradicated
needs testing to ensure nothing broke

switch:
- make InputState hold the data directly instead of inheriting the 2 used things.
- make it hold 3 u64 attributes for the keys, instead of exposing PadState and requiring usage to be through padGetButtons and derivatives
- added a global constant pointer to it for Clickable and Scrollable to use, hoping to fix the crash

M:/GitHub/Checkpoint/switch/source/configuration.cpp: In function 'void handle_populate(mg_connection*, http_message*)':
M:/GitHub/Checkpoint/switch/source/configuration.cpp:34:76: warning: unused parameter 'hm' [-Wunused-parameter]
   34 | static void handle_populate(struct mg_connection* nc, struct http_message* hm)
      |                                                       ~~~~~~~~~~~~~~~~~~~~~^~

Scrollable was crashing because we were dereferencing `input` when it could be `nullptr`. To make the code more fault tolerant, I added checks to make sure `input` is valid before dereferencing.

But the more important change is to propagate `g_input` by default.