feat: create or upload floating action button

[AlexAndBear]

Description

Related Issue

• Fixes Make "Create or Upload" the FAB of the files app #1960

How Has This Been Tested?

• test environment:
• test case 1:
• test case 2:
• ...

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)

[JammingBen]

Nice, already feels really good IMO! A few quirks I noticed, some may be for a follow-up.

• The batch actions when selecting a file have a bit of margin to the left, that looks weird.
• Didn't we say we want the action for creating spaces to be in this menu on the spaces overview page? I can't remember though 🤔
• In views without a FAB we should make sure to align the first nav item with the headline/breadcrumb of the content area (or at least align the top and the left margin within the sidebar):

• When navigating into folders, the button blinks for a short time because it's disabled initially. While not dramatically bad, it's a bit annoying. But I doubt we can fix that easily. Maybe with some hacky debounce.

At last, but that's something for PM to decide, we could think about not disabling the button and just defaulting to creating in the personal space IMO. That's how other clouds do it. The disabling feels a bit weird to me... on the other hand though it's really transparent to the user we they are creating files, which wouldn't be the case if we implicitly default to the personal space.

[AlexAndBear]

Nice, already feels really good IMO! A few quirks I noticed, some may be for a follow-up.

• The batch actions when selecting a file have a bit of margin to the left, that looks weird.
• Didn't we say we want the action for creating spaces to be in this menu on the spaces overview page? I can't remember though 🤔
• In views without a FAB we should make sure to align the first nav item with the headline/breadcrumb of the content area (or at least align the top and the left margin within the sidebar):

* When navigating into folders, the button blinks for a short time because it's disabled initially. While not dramatically bad, it's a bit annoying. But I doubt we can fix that easily. Maybe with some hacky debounce.

At last, but that's something for PM to decide, we could think about not disabling the button and just defaulting to creating in the personal space IMO. That's how other clouds do it. The disabling feels a bit weird to me... on the other hand though it's really transparent to the user we they are creating files, which wouldn't be the case if we implicitly default to the personal space.

• The batch actions when selecting a file have a bit of margin to the left, that looks weird. ✅
• In views without a FAB we should make sure to align the first nav item with the headline/breadcrumb of the content area (or at least align the top and the left margin within the sidebar) ✅