feat: remove edit space description inline button

[kulmann]

Description

Removing the edit space description inline-button from the space header. It's supposed to be pretty for everyone, not only for those who can't edit the description. ;-) Also, aligning the button vertically is virtually impossible because it depends on the vertical paddings of the rendered content - which is different if some headline or block text is used.

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 removes the inline edit button from the space description/readme section in the space header component to improve visual consistency and address styling challenges.

• Removes the edit description inline button that was displayed next to the markdown content
• Eliminates associated computed properties and imports that are no longer needed
• Simplifies the CSS class structure for the markdown container

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[kulmann]

@tbsbdr assigning you as a reviewer, because while this improves rendered appearance and usability-consistency it also is not as "in your face" anymore how to edit the space description. One has to click the context menu of the space.

Please note: we also don't offer an image upload when clicking on the image or a title/subtitle edit for the space, why would we allow to edit the description from an inline-button then?

[kulmann]

bg-transparent is not needed here anymore, because I fixed that in den text-editor component styles in another PR.

[tbsbdr]

Please note: we also don't offer an image upload when clicking on the image or a title/subtitle edit for the space, why would we allow to edit the description from an inline-button then?

I woudl say its less about consistency. more important is, that the most frequent actions are "in your face" and the less frequent get a backseat. editing the space description turned out to be less frequently used at least from what I see out there.

[tbsbdr]

lgtm