Storage: remove LFS (#3577)

* Storage: drop internal storage

* Storage: rollback some unnecessary changes

* Storage: rollback some unnecessary changes part 2

* Storage: cleanup various defines and int handling. Ble: allow short connection interval if internal flash is not used.

* Storage: do not return storage if it is not ready

* Save PIN code to RTC, update settings

* Simplify the code, clean up includes

* Rearrange some code

* apps: storage_move_to_sd: conditionally enable with --extra-define=STORAGE_INT_ON_LFS

* Load Desktop settings automatically

* Redirect /any to /ext

* Abolish storage_move_to_sd app

* Remove as many mentions of ANY_PATH as possible

* Fix desktop settings wrongly not loading

* Improve desktop settings handling and strings

* Load BLE settings and keys automatically

* Improve BLE configuration procedure

* Do not load bluetooth keys twice if they were already loaded

* Load dolphin state automatically

* Fix merge artifact

* Load notification settings automatically

* Update desktop settings strings

* Load expansion settings automatically

* Do not use thread signals to reload desktop settings

* Load region data automatically, separate to its own hook

* Improve ble behaviour with no keys

* Fix Dolphin state not resetting correctly

* Add a status check

* Make Desktop save its own settings

* Check result when taking and releasing mutex

* Improve default thread signal handling in FuriEventLoop

* Make bt service in charge of saving settings, add settings api

* Fix a deadlock due to timer thread not receiving time

* Lock core2 when reinitialising bt

* Update clang-format

* Revert "Update clang-format"

This reverts commit d61295ac06.

* Format sources with clang-format

* Revert old stack size for desktop settings

* Allocate big struct dynamically

* Simplify PIN comparison

* Save pointer to storage in Desktop object

* Fix region provisioning for hardware regions

* Remove stale TODO + siimplify code

* Clean up region.c

* Use sizeof instead of macro define

* Limit PIN length to 10 for consistency

* Emit a warning upon usage of /any

* Add delay after finding flipper

* Remove unnecessary delay

* Remove all mentions of STORAGE_INT_ON_LFS

* Remove littlefs and internal storage

* Remove all possible LittleFS mentions

* Fix browser tab in Archive

* Ble: fix connection interval explanation

* Bump API Symbols

* BLE: Update comments interval connection comments

* Storage: clear FuriHalRtcFlagStorageFormatInternal if set

---------

Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com>
Co-authored-by: hedger <hedger@nanode.su>
Co-authored-by: Georgii Surkov <37121527+gsurkov@users.noreply.github.com>

applications/settings/bt_settings_app/bt_settings_app.c

@@ -15,8 +15,6 @@ static bool bt_settings_back_event_callback(void* context) {
 BtSettingsApp* bt_settings_app_alloc(void) {
     BtSettingsApp* app = malloc(sizeof(BtSettingsApp));
 
-    // Load settings
-    bt_settings_load(&app->settings);
     app->gui = furi_record_open(RECORD_GUI);
     app->bt = furi_record_open(RECORD_BT);
 
@@ -48,6 +46,8 @@ BtSettingsApp* bt_settings_app_alloc(void) {
     view_dispatcher_add_view(
         app->view_dispatcher, BtSettingsAppViewPopup, popup_get_view(app->popup));
 
+    bt_get_settings(app->bt, &app->settings);
+
     // Set first scene
     scene_manager_next_scene(app->scene_manager, BtSettingsAppSceneStart);
     return app;
@@ -55,6 +55,7 @@ BtSettingsApp* bt_settings_app_alloc(void) {
 
 void bt_settings_app_free(BtSettingsApp* app) {
     furi_assert(app);
+    bt_set_settings(app->bt, &app->settings);
     // Gui modules
     view_dispatcher_remove_view(app->view_dispatcher, BtSettingsAppViewVarItemList);
     variable_item_list_free(app->var_item_list);
@@ -79,7 +80,6 @@ extern int32_t bt_settings_app(void* p) {
     UNUSED(p);
     BtSettingsApp* app = bt_settings_app_alloc();
     view_dispatcher_run(app->view_dispatcher);
-    bt_settings_save(&app->settings);
     bt_settings_app_free(app);
     return 0;
 }