Update styles and add task priority feature

- Changed border color from #eee to #cdcdcd in various CSS files including dropzone, mapplic, summernote, grid, and select2 to enhance UI consistency.
- Added a new task priority selection feature in the task popup, allowing users to change the priority of tasks dynamically via AJAX.
- Implemented AJAX functionality to handle task priority changes and update the task list accordingly.

.vscode/ftp-kr.sync.cache.json

@@ -203,20 +203,20 @@
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