Fixes & memory optimizations (#540)

- Disable BlueTooth driver by default, to ensure it doesn't allocate memory
- Update BlueTooth settings app behaviour to make sure it starts/stops the devices
- Disable SPI RAM usage for ST7789 as it broke App Hub
- Reduce T-Display and T-Deck display buffers from 1/3rd to 1/10th of resolution
- Enabled dynamic buffers for MbedTLS to optimize memory
- TLS 1.3 did not work with dynamic buffers: downgrade to 1.2 for now
- WiFi is now enabled from the Boot app callback to the WiFi service, instead of the WiFi service start() function. This avoids a lockup when WiFi is started by the service while the Boot app is updating the WiFi settings.

Tactility/Source/app/btpeersettings/BtPeerSettings.cpp

@@ -1,16 +1,18 @@
 #include <Tactility/app/btpeersettings/BtPeerSettings.h>
 
-#include <Tactility/Logger.h>
+#include "tactility/device.h"
+
 #include <Tactility/LogMessages.h>
+#include <Tactility/Logger.h>
 #include <Tactility/app/App.h>
 #include <Tactility/app/AppContext.h>
 #include <Tactility/app/AppManifest.h>
 #include <Tactility/app/alertdialog/AlertDialog.h>
+#include <Tactility/bluetooth/Bluetooth.h>
+#include <Tactility/bluetooth/BluetoothPairedDevice.h>
 #include <Tactility/lvgl/LvglSync.h>
 #include <Tactility/lvgl/Style.h>
 #include <Tactility/lvgl/Toolbar.h>
-#include <Tactility/bluetooth/Bluetooth.h>
-#include <Tactility/bluetooth/BluetoothPairedDevice.h>
 #include <tactility/check.h>
 #include <tactility/drivers/bluetooth.h>
 
@@ -124,7 +126,7 @@ public:
     }
 
     void onShow(AppContext& app, lv_obj_t* parent) override {
-        if (struct Device* dev = bluetooth::findFirstDevice()) {
+        if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) {
             bluetooth_add_event_callback(dev, this, onKernelBtEvent);
         }
 
@@ -192,7 +194,7 @@ public:
     }
 
     void onHide(AppContext& app) override {
-        if (struct Device* dev = bluetooth::findFirstDevice()) {
+        if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) {
             bluetooth_remove_event_callback(dev, onKernelBtEvent);
         }
         viewEnabled = false;