chore: Add Near Icon

[gambinish]

Description

Adds NEAR Icon for ChainId 397 and 398. These chains are currently new networks being integrated onto EVM. They are currently in development, but it was requested from their team to preemptively add these icons, before production RPC endpoints are available.

For context, here is their proposal: near/NEPs#518

https://chainlist.org/chain/397
https://chainlist.org/chain/398

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/MMASSETS-343

Manual testing steps

Once production RPCs are available, these icons should appear when NEAR RPC gets added in custom networks.

Screenshots/Recordings

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension 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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.12%. Comparing base (2dc3768) to head (d6efa7f).
Report is 12 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #26459   +/-   ##
========================================
  Coverage    70.11%   70.12%           
========================================
  Files         1428     1428           
  Lines        50089    50090    +1     
  Branches     13894    13894           
========================================
+ Hits         35119    35121    +2     
+ Misses       14970    14969    -1     

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[metamaskbot]

Builds ready [d6efa7f]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
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  • content-script: 0
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Page Load Metrics (147 ± 173 ms)

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		domContentLoaded	9	68	23	13	6
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		domInteractive	9	68	23	13	6

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 155 Bytes (0.00%)