This PR introduces a comprehensive "Snippet" management system, designed to improve productivity and code reuse within the application. Users can now save frequently used code fragments, organize them with names and tags, and quickly insert them into the active editor.

Saving Snippets:

• The ability to save a code fragment directly from the editor has been implemented.
• Users can select the desired text and save it as a snippet using the keyboard shortcut Cmd/Ctrl + Shift + S
• A modal (SnippetSaveView) opens, allowing users to assign a name and tags to the new snippet for easy categorization.

Managing and Viewing Snippets:

• A new button with the "Manage your snippets" has been added to the toolbar (Toolbar.vue) to access the snippet manager.
• TheSnippetHistoryView modal offers a two-pane view with a list of all saved snippets and a preview of the selected fragment's code.
• A search bar is available to filter snippets by name, tag, or content.

Editing and Deleting:

• Users have the ability to edit the name, tags, and code content of an existing snippet directly from the management interface.
• The functionality to delete a snippet has been implemented, with a confirmation modal (ModalConfirmation) to prevent accidental deletions.

Inserting into the Editor:

• A double-click on a snippet in the list or using the "Add" button inserts the corresponding code at the current cursor position in the main editor