plugins: Convert some of the plugins to use Storage::isSliceUninitialized

Three plugins (`AutoShiftConfig`, `EscapeOneShotConfig` and `TypingBreaks`) that
used the same checker pattern to see if their storage slice is uninitialized now
use the new `storage().isSliceUninitialized()` method instead.

This reduces code duplication, among other things.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

plugins/Kaleidoscope-AutoShift/src/kaleidoscope/plugin/AutoShiftConfig.cpp

@@ -37,13 +37,11 @@ uint16_t AutoShiftConfig::settings_base_;
 
 EventHandlerResult AutoShiftConfig::onSetup() {
   settings_base_ = ::EEPROMSettings.requestSlice(sizeof(AutoShift::settings_));
-  uint32_t checker;
 
-  Runtime.storage().get(settings_base_, checker);
-
-  // Check if we have an empty eeprom...
-  if (checker == 0xffffffff) {
-    // ...if the eeprom was empty, store the default settings.
+  if (Runtime.storage().isSliceUninitialized(
+        settings_base_,
+        sizeof(AutoShift::settings_))) {
+    // If our slice is uninitialized, set sensible defaults.
     Runtime.storage().put(settings_base_, AutoShift::settings_);
     Runtime.storage().commit();
   }

plugins/Kaleidoscope-Escape-OneShot/src/kaleidoscope/plugin/Escape-OneShot-Config.cpp

@@ -34,13 +34,11 @@ uint16_t EscapeOneShotConfig::settings_base_;
 
 EventHandlerResult EscapeOneShotConfig::onSetup() {
   settings_base_ = ::EEPROMSettings.requestSlice(sizeof(EscapeOneShot::settings_));
-  uint16_t checker;
 
-  Runtime.storage().get(settings_base_, checker);
-
-  // Check if we have an empty eeprom...
-  if (checker == 0xffff) {
-    // ...if the eeprom was empty, store the default settings.
+  if (Runtime.storage().isSliceUninitialized(
+        settings_base_,
+        sizeof(EscapeOneShot::settings_))) {
+    // If our slice is uninitialized, set sensible defaults.
     Runtime.storage().put(settings_base_, EscapeOneShot::settings_);
     Runtime.storage().commit();
   }

plugins/Kaleidoscope-TypingBreaks/src/kaleidoscope/plugin/TypingBreaks.cpp

@@ -121,11 +121,10 @@ EventHandlerResult TypingBreaks::onNameQuery() {
 EventHandlerResult TypingBreaks::onSetup() {
   settings_base_ = ::EEPROMSettings.requestSlice(sizeof(settings));
 
-  // If idleTime is max, assume that EEPROM is uninitialized, and store the
-  // defaults.
-  uint32_t idle_time;
-  Runtime.storage().get(settings_base_, idle_time);
-  if (idle_time == 0xffffffff) {
+  if (Runtime.storage().isSliceUninitialized(
+        settings_base_,
+        sizeof(settings))) {
+    // If our slice is uninitialized, set sensible defaults.
     Runtime.storage().put(settings_base_, settings);
     Runtime.storage().commit();
   }