feat: move file system forms to side panel

[Jay-Topher]

Done

Moved File system table forms to side panel

• Delete Filesystem
• Unmount Filesystem
• Delete special filesystem

QA steps

• Visit the storage tab of a ready state machine
• In the file systems table, click the action dropdown for a file system
• Ensure all actions open in a side panel
• Click the Add special filesystem button to add a special file sysem
• Ensure that the actions for that file system also open up in a side panel
• Ensure that the side panel forms work as expected

Fixes

Fixes: MAASENG-2874

Screenshots

Before

After

Notes

[webteam-app]

Demo starting at https://maas-ui-5365.demos.haus

[ndv99]

This isn't a problem with your PR, but one that I think was introduced recently on another PR - the padding at the top of the side panels feels way too small, and is inconsistent with the rest of the app:

@petermakowski do you have any ideas?

[ndv99]

LGTM

[Jay-Topher]

This isn't a problem with your PR, but one that I think was introduced recently on another PR - the padding at the top of the side panels feels way too small, and is inconsistent with the rest of the app:

@petermakowski do you have any ideas?

True, it was different before the rebase, it should be an easy enough fix

[Jay-Topher]

@ndv99 it happened when the top padding was removed