Front-end improvements for the Gateway

[lucaspar]

• Fixes
  • Fixes debouncing when running a capture search.
  • Updated deps (closes build(deps-dev): bump qs from 6.14.1 to 6.14.2 in /gateway in the npm_and_yarn group across 1 directory #258)
  • (CI) fixed failing GH Actions setup.
• Styling
  • Captures and dataset listings are more visually coherent.
  • Hiding authenticated URLs from navbar if user is not authenticated.
  • Vertical dividers in navbar.
  • When running a capture search, the loading spinner is now in the button and it's visible for slightly longer if the request finishes too fast.
• Docs
  • Adds deployment instructions for operators, in Gateway changelog.
• Config
  • New .env variables to help distinguishing SDS deployments.
• Cleanup
  • Removed unused "about" page and its main CSS rules.

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
gateway/sds_gateway/static/css/spectrumx_theme.css	73% smaller
gateway/sds_gateway/templates/users/file_list.html	56% smaller
gateway/sds_gateway/templates/base.html	51% smaller
gateway/sds_gateway/static/css/custom.css	39% smaller
gateway/sds_gateway/static/js/components.js	9% smaller
gateway/sds_gateway/static/js/file-list.js	5% smaller
.github/workflows/sdk-code-quality.yaml	1% smaller
.github/workflows/gwy-code-quality.yaml	0% smaller
.github/workflows/sdk-build-and-publish.yaml	0% smaller
.github/workflows/sdk-cross-platform-tests.yaml	0% smaller
.pre-commit-config.yaml	0% smaller
gateway/.envs/example/django.env	Unsupported file format
gateway/.envs/example/django.prod-example.env	Unsupported file format
gateway/config/settings/base.py	0% smaller
gateway/config/settings/local.py	0% smaller
gateway/config/settings/production.py	0% smaller
gateway/docs/changelog.md	Unsupported file format
gateway/scripts/deploy.sh	Unsupported file format
gateway/sds_gateway/context_processors.py	0% smaller
gateway/sds_gateway/static/css/components.css	0% smaller
gateway/sds_gateway/static/css/variables.css	0% smaller
gateway/sds_gateway/static/images/brand/nd-dome.svg	0% smaller
gateway/sds_gateway/static/js/__tests__/file-list.test.js	0% smaller
gateway/sds_gateway/templates/pages/about.html	0% smaller
gateway/sds_gateway/templates/pages/home.html	Unsupported file format
gateway/sds_gateway/templates/users/dataset_list.html	0% smaller
gateway/sds_gateway/templates/users/partials/captures_page_table.html	Unsupported file format
gateway/sds_gateway/templates/users/partials/my_datasets_tab.html	Unsupported file format
gateway/sds_gateway/templates/users/user_api_key.html	Unsupported file format
gateway/sds_gateway/test_context_processors.py	0% smaller
gateway/sds_gateway/test_settings.py	0% smaller
gateway/tests/__init__.py	0% smaller
gateway/tests/test_brand_image_url.py	0% smaller
sdk/docs/mkdocs/index.md	Unsupported file format

[Copilot]

Pull request overview

This PR adds customizable branding to the SDS Gateway to distinguish different deployment instances, along with front-end improvements and a critical debouncing fix for capture search. The branding system allows operators to configure institution names, site identifiers, and optional branding images through environment variables, which are then displayed in the navbar, page titles, and homepage.

Changes:

• Fixed search debouncing using AbortController to cancel stale requests and prevent race conditions
• Added branding system with configurable site names, institution names, and optional branding images
• Improved UI consistency across captures and datasets pages with better visual hierarchy
• Added vertical dividers in navbar and restricted authenticated-only links to authenticated users

Reviewed changes

Copilot reviewed 19 out of 20 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
gateway/sds_gateway/context_processors.py	Added branding context processor to expose branding settings to all templates
gateway/sds_gateway/test_context_processors.py	Added tests for the new branding context processor
gateway/config/settings/base.py	Defined branding settings and helper function to resolve brand image paths
gateway/config/settings/production.py	Added SDS_SITE_FQDN to ALLOWED_HOSTS
gateway/config/settings/local.py	Added SDS_SITE_FQDN to ALLOWED_HOSTS
gateway/.envs/example/django.env	Added example branding environment variables for development
gateway/.envs/example/django.prod-example.env	Added example branding environment variables for production
gateway/sds_gateway/templates/base.html	Updated navbar with branding, added vertical dividers, restricted links to authenticated users
gateway/sds_gateway/templates/pages/home.html	Added branding display with institution names and optional brand image banner
gateway/sds_gateway/templates/pages/about.html	Added optional brand image background to description section
gateway/sds_gateway/templates/users/dataset_list.html	Changed title from "My Datasets" to "Datasets" for consistency
gateway/sds_gateway/templates/users/partials/my_datasets_tab.html	Updated comments for consistency
gateway/sds_gateway/templates/users/file_list.html	Restructured layout, added date auto-fill logic, improved search UI
gateway/sds_gateway/static/js/components.js	Implemented AbortController pattern for request cancellation in SearchManager
gateway/sds_gateway/static/js/file-list.js	Updated to use AbortController signal, added minimum loading time, improved button state management
gateway/sds_gateway/static/css/variables.css	Added homepage color variable for institution highlighting
gateway/sds_gateway/static/css/spectrumx_theme.css	Added styles for brand images, navbar branding, and institution highlighting
gateway/docs/changelog.md	Added comprehensive deployment instructions for operators
.pre-commit-config.yaml	Increased max file size check from default to 1MB

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