[FL-2430] Automatic Desktop Locking (#1101)

* Add Auto Lock Time setting
* Update .gitignore
* Add value_index toolbox module
* Auto locking basic implementation
* Better AutoLock implementation, edge cases and cleanup
* Fix NULL pointer crash
* Turn off backlight shortly in locked mode
* Re-enable auto lock after pin lock
* Correctly handle start when pin locked
* Use timer to hide locked hint
* Use a single state variable instead of multiple bools
* Do not call update callback recursively
* Allow input when the Unlocked hint is shown
* Add a delay to backlight switch off while locking
* Better user input handling
* Switch backlight off after pin timeout
* Correct grammar in notification settings

Co-authored-by: あく <alleteam@gmail.com>

applications/system/system_settings.c

@@ -1,19 +1,6 @@
 #include "system_settings.h"
 #include <loader/loader.h>
-
-static uint8_t
-    uint32_value_index(const uint32_t value, const uint32_t values[], uint8_t values_count) {
-    int64_t last_value = INT64_MIN;
-    uint8_t index = 0;
-    for(uint8_t i = 0; i < values_count; i++) {
-        if((value >= last_value) && (value <= values[i])) {
-            index = i;
-            break;
-        }
-        last_value = values[i];
-    }
-    return index;
-}
+#include <lib/toolbox/value_index.h>
 
 const char* const log_level_text[] = {
     "Default",
@@ -80,7 +67,7 @@ SystemSettings* system_settings_alloc() {
 
     item = variable_item_list_add(
         app->var_item_list, "Log Level", COUNT_OF(log_level_text), log_level_changed, app);
-    value_index = uint32_value_index(
+    value_index = value_index_uint32(
         furi_hal_rtc_get_log_level(), log_level_value, COUNT_OF(log_level_text));
     variable_item_set_current_value_index(item, value_index);
     variable_item_set_current_value_text(item, log_level_text[value_index]);