feat: enable feedback link and fix button color

[kulmann]

Description

We have a feedback survey now. This PR enables the feedback button in the topbar and sets our survey url as default. Also fixes the color of the button.

Related Issue

• Fixes Add Feedback Form to the Web UI #1135

Types of changes

• Bugfix
• Enhancement (a change that doesn't break existing code or deployments)
• Breaking change (a modification that affects current functionality)
• Technical debt (addressing code that needs refactoring or improvements)
• Tests (adding or improving tests)
• Documentation (updates or additions to documentation)
• Maintenance (like dependency updates or tooling adjustments)

[Copilot]

Pull Request Overview

This PR enables the feedback functionality by activating the feedback link in the topbar and updating its styling. The changes provide users with a way to submit feedback through a dedicated survey.

• Enables the feedback link by setting disableFeedbackLink to false in the configuration
• Updates the default feedback URL to point to the OpenCloud feedback survey
• Changes the button color role from "surface" to "chrome" for better visual consistency

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/web-runtime/src/components/Topbar/FeedbackLink.vue	Updates button styling, default URL, and feedback description text
packages/web-pkg/src/composables/piniaStores/config/config.ts	Enables feedback link by changing default configuration

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[kulmann]

@tbsbdr @db-ot are you guys fine with the tooltip text?

[tbsbdr]

How about keeping it shorter and a little bit more precise: Share improvement ideas?
imo second best: Feedback

solved