Remove dApp Staking v2 code

[bobo-k2]

Pull Request Summary

Removed dApp staking v2 code and some other unused code. Also made adjustments to code which referenced removed code.

Things to do

• remove unused translation (tricky and time consuming one)
• integration tests

Check list

• [ ] contains breaking changes
• [ ] adds new feature
• [x] modifies existing feature (bug fix or improvements)
• [ ] relies on other tasks
• [ ] documentation changes
• [ ] tested on mobile devices

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 85c2fc0):

https://astar-apps--pr1283-feat-staking-v2-remo-bpa8l7en.web.app

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[impelcrypto]

@bobo-k2 I've resolved conflict in this commit.

[bobo-k2]

@impelcrypto, @gtg7784 thank you for comments. I resleoved them in https://github.com/AstarNetwork/astar-apps/pull/1283/commits/8e31b0a9fa80b50ae1f30e8aceb0fabd5300c2dd

[Kahonnohak]

start checking now and found dApp news is missing 🫣

[Kahonnohak]

Could you remove data from dApp news section apart from the latest 5? Keep what we can see and remove all (only promotion ones)

[bobo-k2]

Tested and it works. I think you can move the files from staking-v3 (this can be done in this or the other PR)

I will move in another PR

[bobo-k2]

Could you remove data from dApp news section apart from the latest 5? Keep what we can see and remove all (only promotion ones)

@Kahonnohak thank you for comments. I fixed missing ads area. I am not sure if I get comment regarding number of dApps correctly. I changed the code to show 5 promoted and 5 new dApps. Let me know if needs to be different.

Fixed in https://github.com/AstarNetwork/astar-apps/pull/1283/commits/db3a394a52b66fb7d094be1e3c151715fe62176c