fix: correct white space in text paragraphs

lib/screens/Home/local/first_token_prompt.dart

@@ -84,7 +84,7 @@ class _FirstTokenPromptState extends ConsumerState<FirstTokenPrompt> {
           child: Text(
             'A token is stored as a single image, which you can pick from your gallery. '
             'After selecting and cropping the image, it gets added to your collection. '
-            'Next, you can write down the story behind the token: who gave it to you, '
+            '\n\nNext, you can write down the story behind the token: who gave it to you, '
             'when, and why. Once you have given the token away again, you can add the '
             'story behind that exchange as well.',
           ),

lib/screens/Home/local/not_authorised_prompt.dart

@@ -74,7 +74,7 @@ class NotAuthorisedPrompt extends ConsumerWidget {
               'This way, you can access your tokens from any device, while keeping '
               'them private. The app only has access to the folder it creates in '
               'your Drive. You can revoke access at any time in your Google Account settings.'
-              '\nDue to the way Google handles authorisation, you have to give the app '
+              '\n\nDue to the way Google handles authorisation, you have to give the app '
               'access to your Drive every time you use the app.'
             ),
           ),