Made the specflow compatible with net6

CI: Add GitHub Actions workflow

issue-2622: mRemoteNGInstaller - remove explicit PuTTyNG fragment, as…

issue-2622: mRemoteNGInstaller - remove explicit PuTTyNG fragment, as PuttyNG is copied implicitly by FilesFragment. Fixes #2622.

Issue 726 - SecureString for ConnectionInfo.Password

Move ConnectionInfo.Password to use SecureString. Only decrypt when required for connecting. Update tests to skip tests of password values where necessary.

correct registry path

Enhancement of Registry Settings capabilities

This commit finalizes the Update Options Page with the following changes:
- Removed unnecessary methods due to new features of the registry handler class.
- Updated and added comments to improve code readability and understanding.
- Implemented UI optimizations such as disabling the frequency control and showing "Never" in the combobox.
- Enabled the password storing ability, making it functional but not yet usable.
- Applied some code optimizations for improved efficiency.

This commit finalizes the Credentials Options Page with the following changes:
- Updated and added comments to improve code readability and understanding.
- Enabled the password storing ability, making it functional but not yet usable.
- Applied some code optimizations for improved efficiency.

This commit refactors the registry settings interaction classes by consolidating the multiple entry classes for int, string, bool, etc., into a single class that supports multiple data types. This change simplifies the code and enhances readability.

- Consolidate multiple entry classes (int, string, bool, etc.) into a single class
- Introduce WindowsRegistryEntry<T> to support multiple data types

Remember the opened connection file on relaunch

add Clickstudios Passwordstate API connector

Fix for #2592 compiler issue

Fix #2592: Prevent GeneralAppInfo.ApplicationVersion from being set in Unit Tests. Not needed for tests.

Log File Opening Fails on Notification Settings Page

- Fixed a bug that occurred when trying to open the log file on the Notification settings page.
- Removed unnecessary file association when user tries to open the log file on the Notification page. The "choose file" dialog handles the extension as it is fixed on .log
- Implemented fallback to open file explorer to the specified file location if mRem fails to open the log file.

correct build number calculations - now its days from last release + hour + minute of build
some changes to migrate to json schema + preparation of using db to save settings