feat: persist search query in URL parameters on projects page

[TonyStef]

Fixes #3101

What is this PR about?

Adds URL search parameter persistence to the Projects page. When filtering projects, the search query is synced to the URL (?q=searchterm), enabling:

• Browser back/forward navigation through search history
• Shareable/bookmarkable search URLs
• Search state preserved on page refresh

Checklist

Before submitting this PR, please make sure that:

• [x ] You created a dedicated branch based on the canary branch.
• [x ] You have read the suggestions in the CONTRIBUTING.md file https://github.com/Dokploy/dokploy/blob/canary/CONTRIBUTING.md#pull-request
• [x ] You have tested this PR in your local instance.

Issues related (if applicable)

Closes #3101

Screenshots (if applicable)