Update LNC and Umbrel LND connrectors content

[stackingsaunter]

Umbrel connector content is out of date. Both copy and video there relates to previous Umbrel design:

Let's update the copy with:

1. In your Lightning Node dashboard go to Connect wallet
2. Select REST (Tor) or REST (Local Network) mode
3. Copy the lndconnect URL and paste it below

And change the video to this screenshot:

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We can update LNC connector as well.

Current version:

Updated copy:

1. On Lightning Terminal sidebar choose Lightning Node Connect
2. Click Create a new session
3. Label the session, choose desired permissions and submit
4. Copy pairing phrase and paste it below

Added screenshot (insead of Alby logo):

[AdarshRawat1]

I can tackle this issue!

[stackingsaunter]

@AdarshRawat1 great, go for it

[mviswanathsai]

Can I be assigned this issue, if no one else is working on it?

[AdarshRawat1]

@mviswanathsai Thank you for your willingness to address this matter. However, I am currently handling it. Please feel free to explore any other issues that may catch your attention.

[mviswanathsai]

@AdarshRawat1 I am sorry but since the issue has been assigned long back I assumed no one is working on it and have created a PR.

[mviswanathsai]

@stackingsaunter I have solved this issue, is it ok if I link the PR here? Sorry I just started working on it since it seemed to be inactive.

[AdarshRawat1]

@mviswanathsai I apologize for any misunderstanding.

[mviswanathsai]

@AdarshRawat1 it's all good, no issues!