fixes permissions for non-superadmins in device tab

[sairina]

Summary

Added additional logic to check whether user is a super-admin so that "info" and "settings" tabs are visible/disabled in Device:

• If user is super-admin, they can see those tabs.
• If user can "manage content" but is not a super-admin, they cannot see those tabs

Steps taken to check:

• Made a learner account and gave the learner "can manage content" permission.
• Logged in as learner to see if those two tabs were visible.
• Checked other accounts that could/could not manage content to see if changes worked.

Screenshot
Learner with "can manage" permissions can no longer see the "info" and "settings" tabs.

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Reviewer guidance

Please test different user accounts with different permissions (can manage, coach, super-admin, etc.)
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References

Fixes #6650

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Contributor Checklist

PR process:

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')

Testing:

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included

Reviewer Checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[codecov]

Codecov Report

Merging #7711 (bf8554d) into release-v0.14.x (a69718c) will decrease coverage by 22.79%.
The diff coverage is 15.18%.

Impacted Files	Coverage Δ
...libri/core/assets/src/api-resources/contentNode.js	0.00% <0.00%> (ø)
...ibri/core/assets/src/api-resources/facilityTask.js	0.00% <0.00%> (ø)
kolibri/core/assets/src/api-resources/index.js	100.00% <ø> (ø)
...olibri/core/assets/src/mixins/commonCoreStrings.js	33.33% <ø> (ø)
...libri/core/assets/src/mixins/commonSyncElements.js	5.88% <0.00%> (-2.46%)	⬇️
...ri/core/assets/src/state/modules/core/mutations.js	35.71% <ø> (-3.18%)	⬇️
kolibri/core/assets/src/utils/appCapabilities.js	27.27% <0.00%> (ø)
kolibri/core/assets/src/utils/intl-locale-data.js	0.94% <0.00%> (-0.08%)	⬇️
kolibri/core/assets/src/views/AppBar.vue	60.86% <0.00%> (-9.14%)	⬇️
...e/assets/src/views/AppError/TechnicalTextBlock.vue	13.33% <ø> (ø)
... and 448 more

[jonboiser]

Looks good!