[Datahub][API form] Empty string not read as negative limit

[cmoinier]

Description

This PR fixes that empty strings are interpreted as -1 for the limit input.
It also updates the docker compo with a new dump, which changes a deprecated OGC API URL to a working one.

Please run docker-compose down -v and docker-compose up -d to have the right dump.

Quality Assurance Checklist

• Commit history is devoid of any merge commits and readable to facilitate reviews
• If new logic ⚙️ is introduced: unit tests were added
• If new user stories 🤏 are introduced: E2E tests were added
• If new UI components 🕹️ are introduced: corresponding stories in Storybook were created
• If breaking changes 🪚 are introduced: add the breaking change label
• If bugs 🐞 are fixed: add the backport <release branch> label
• The documentation website 📚 has received the love it deserves

[github-actions]

Affected libs: ui-elements, feature-catalog, feature-record, feature-router, feature-search, feature-map, feature-dataviz, ui-catalog, ui-search,
Affected apps: metadata-editor, datahub, demo, webcomponents, map-viewer, search,

• 🚀 Build and deploy storybook and demo on GitHub Pages
• 📦 Build and push affected docker images

[coveralls]

coverage: 86.195% (+0.01%) from 86.184%
when pulling 3da2a77 on fix/ogc-request-limit
into 4db0b59 on main.

[tkohr]

Thanks for the fix @cmoinier ! It works fine now. I left one comment regarding the template. Maybe we could also leverage this PR to resolve the typing issues we had in MEL and apply the same changes here.

[tkohr]

Thanks for the adaptions @cmoinier !