fix: error messages in dpns screen

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Walkthrough

The changes in this pull request enhance error handling in the query_dpns_contested_resources and query_dpns_vote_contenders methods by introducing a retry mechanism for transient errors. A maximum of three retries is allowed for specific error messages, improving robustness during resource fetching. Additionally, the display_message method in the UI is modified to filter out certain error messages to streamline user notifications. The overall control flow remains similar, but these adjustments increase the resilience and clarity of error handling across the application.

Changes

File Path	Change Summary
`src/backend_task/contested_names/query_dpns_contested_resources.rs`	Introduced a retry mechanism for fetching contested resources with a maximum of 3 retries for specific transient errors. Standardized error logging. Updated handling of `start_at_value`.
`src/backend_task/contested_names/query_dpns_vote_contenders.rs`	Added a retry mechanism for fetching vote contenders, allowing up to 3 retries for specific errors. Restructured control flow with a loop for attempts. Method signature updated.
`src/ui/dpns_contested_names_screen.rs`	Modified `display_message` to prevent displaying certain error messages, specifically those containing "try another server." Logic updated without changing method signature.

Possibly related PRs

#14: The changes in this PR introduce a retry mechanism in the query_dpns_vote_contenders method, which is similar to the retry logic added in the query_dpns_contested_resources method of the main PR.
#18: This PR modifies the DPNSContestedNamesScreen to handle different subscreens, which may relate to the overall error handling and resource querying logic in the main PR's context of contested resources.
#51: The modifications to the add_dpns_subscreen_chooser_panel function in this PR enhance the interaction with the application context, which is relevant to the changes made in the main PR regarding error handling and resource fetching.

Suggested reviewers

QuantumExplorer
ogabrielides

🐰 In the meadow, where bunnies play,
A retry mechanism brightens the day.
With each little hop, we fetch with cheer,
Filtering messages, we hold dear.
So let’s dance and twirl, with joy we’ll sing,
For error handling's a wonderful thing! 🌼

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dashpay / dash-evo-tool