fix(perps): remove hardcoded color in RefreshControl

[michalconsensys]

Description

This PR removes custom color styling from RefreshControl components in the Perps feature area. The colors prop (or tintColor prop) was previously set to theme.colors.icon.default, which could cause visual inconsistencies when the user uses dark theme. By removing this custom color configuration, the RefreshControl now uses the native system defaults

Changelog

CHANGELOG entry: Fixed RefreshControl color styling in Perps views to use native system defaults

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/TAT-1568

Manual testing steps

Feature: RefreshControl styling in Perps views

  Scenario: user performs pull-to-refresh on Perps Market Details
    Given user is on the Perps Market Details view
    And the user is using dark mode on Android
    
    When user performs a pull-to-refresh gesture
    Then the refresh indicator should display with native system colors
    And the refresh indicator should be visible and properly styled
    And data should refresh successfully

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

---

Note

Removes theme-based color overrides from RefreshControl in Perps Market Details and drops the now-unused theme from useStyles.

• Perps Market Details (app/components/UI/Perps/Views/PerpsMarketDetailsView/PerpsMarketDetailsView.tsx):
  • RefreshControl: Removed tintColor/colors theme overrides; now uses system defaults via <RefreshControl refreshing={refreshing} onRefresh={handleRefresh} />.
  • Styles hook: Dropped unused theme from useStyles destructure (const { styles } = useStyles(createStyles, {});).

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[github-actions]

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.06%. Comparing base (744b8ce) to head (95ae927).
⚠️ Report is 14 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #21916      +/-   ##
==========================================
+ Coverage   77.04%   77.06%   +0.02%     
==========================================
  Files        3765     3767       +2     
  Lines       95826    95863      +37     
  Branches    18616    18623       +7     
==========================================
+ Hits        73833    73881      +48     
+ Misses      16918    16909       -9     
+ Partials     5075     5073       -2     

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[abretonc7s]

Probably need to remove tintColor

[michalconsensys]

@abretonc7s that's now updated

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
1 Accepted issue

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

Addressed