Add Polish translations for admin panel UI strings

[coderabbitai]

Description

Multiple UI strings in the admin panel lack Polish translations in goodmap/locale/pl/LC_MESSAGES/messages.po.

Affected strings

The following strings currently have empty msgstr entries:

• Goodmap Admin Panel
• Admin Panel
• Suggestions
• Reports
• Add Location
• Filter by Type
• Filter by Accessibility
• UUID
• Name
• Position
• Accessible By
• Type
• Actions
• Save
• Cancel
• Delete
• Filter by Status
• Status
• Filter by Priority
• Description
• Priority
• Edit Location
• Edit
• Previous
• Next
• Items per page:
• All
• Accept
• Reject
• pending
• resolved
• rejected
• critical
• high
• medium
• low

Context

This issue was identified during review of PR #309 and deferred to be resolved separately from that PR.

Related to admin panel work in #310.

Backlinks:

• PR: feat: better model handling when suggesting new point and migrate API from RESTX to Spectree #309
• Review comment: feat: better model handling when suggesting new point and migrate API from RESTX to Spectree #309 (comment)
• Requested by: @raven-wing