Merge develop into main (#348)

## App state

Improved app state management in `LoaderService` and `GuiService`:

- Re-ordered some of the state transitions
- Hardened `GuiService` for repeated events (that might trigger a re-render of an app that's already rendered)
- Validate state transitions in `LoaderService` and crash if an app transitions from the wrong state to the next one.

## LoaderService

- Removed `tt::loader::` functions and expose `LoaderService` interface publicly.
- Implement `stopAll()` and `stopAll(id)` which stops all instances of an app, including any apps that were launched by it.
- Rename `stop()` functions to `stopTop()`
- Created `stopTop(id)` which only stops the top-most app when the app id matches.
- Moved `loader::LoaderEvent` to `loader::LoaderService::Event`
- Changed app instance `std::stack` to `std::vector`

## Improvements

- `ElfApp`: error 22 now shows a hint that `main()` might be missing
- Starting, installing and uninstalling apps now stops any running app (and its children) on the stack

## Bugfixes

- `HttpdReq` out of memory issue now shows an error message and doesn't crash anymore (this would happen on devices without PSRAM with WiFi active, when an app was installed)
- `GuiService::hideApp()` lock should not wait for timeout and now waits indefinitely
- `Buildscript/release-sdk-current.sh` deletes the previous local release before building a new one

## Code correctness

- App classes were made `final`
- Apps that had a `void start()` now have a `LaunchId start()`
- `tt::app::State`: renamed `Started` to `Created` and `Stopped` to `Destroyed` to properly reflect earlier name changes

Tactility/Include/Tactility/app/App.h

@@ -88,6 +88,20 @@ LaunchId start(const std::string& id, std::shared_ptr<const Bundle> _Nullable pa
 /** @brief Stop the currently showing app. Show the previous app if any app was still running. */
 void stop();
 
+/** @brief Stop a specific app and any apps it might have launched on the stack.
+ * @param[in] id the app id
+ */
+void stop(const std::string& id);
+
+/** @brief Stop all app instances that match with this identifier and also stop the apps they started.
+ * @warning onResult() will only be called for the resulting app that gets shown (if any)
+ * @param[in] id the id of the app to stop
+ */
+void stopAll(const std::string& id);
+
+/** @return true if the app is running somewhere in the app stack (doesn't have to be the top-most app) */
+bool isRunning(const std::string& id);
+
 /** @return the currently running app context (it is only ever null before the splash screen is shown) */
 std::shared_ptr<AppContext> _Nullable getCurrentAppContext();
 

Tactility/Include/Tactility/app/imageviewer/ImageViewer.h

@@ -1,7 +1,9 @@
 #pragma once
 
+#include <Tactility/app/App.h>
+
 namespace tt::app::imageviewer {
 
-void start(const std::string& file);
+LaunchId start(const std::string& file);
 
-};
+}

Tactility/Include/Tactility/app/inputdialog/InputDialog.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <Tactility/app/App.h>
 #include <Tactility/Bundle.h>
 
 #include <string>
@@ -11,7 +12,7 @@
  */
 namespace tt::app::inputdialog {
 
-void start(const std::string& title, const std::string& message, const std::string& prefilled = "");
+LaunchId start(const std::string& title, const std::string& message, const std::string& prefilled = "");
 
 /**
  * @return the text that was in the field when OK was pressed, or otherwise empty string

Tactility/Include/Tactility/app/notes/Notes.h

@@ -1,11 +1,14 @@
 #pragma once
 
+#include <Tactility/app/App.h>
+
 namespace tt::app::notes {
 
 /**
  * Start the notes app with the specified text file.
  * @param[in] filePath the path to the text file to open
+ * @return the launch id
  */
-void start(const std::string& filePath);
+LaunchId start(const std::string& filePath);
 
 }

Tactility/Include/Tactility/app/selectiondialog/SelectionDialog.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <Tactility/app/App.h>
 #include <Tactility/Bundle.h>
 
 #include <string>
@@ -15,7 +16,7 @@
  */
 namespace tt::app::selectiondialog {
 
-void start(const std::string& title, const std::vector<std::string>& items);
+LaunchId start(const std::string& title, const std::vector<std::string>& items);
 
 /**
  * Get the index of the item that the user selected.

Tactility/Include/Tactility/app/wifimanage/WifiManage.h

@@ -1,7 +1,9 @@
 #pragma once
 
+#include <Tactility/app/App.h>
+
 namespace tt::app::wifimanage {
 
-void start();
+LaunchId start();
 
 } // namespace