feat: General improvements

[bprusinowski]

This PR:

• (merging of cubes) removes dimension selection from merging of cubes modal,
• (login) adds time to last edit date in user profile,
• (login) adds a new login popover menu when clicking on logged user name,
• (dashboard) adds a new, 3-column layout to free canvas dashboard,
• (general) updates styles and closing behavior of confirmation dialog.

How to test

Changes marked with (login) can only be tested on TEST after merging the PR.

To test other changes, go to this link and try to:

• add a chart and remove it to see new dialog design,
• add a new dataset to see removed dimension selector in the last step of the process,
• add two new charts and go to layouting step, change the layout to dashboard / free canvas and resize the window to see that there's an intermediary layout with 3 columns.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
visualization-tool	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 4, 2024 7:11am

[noahonyejese]

Nice one. 😃

[noahonyejese]

Much better, I will review the visual to it once merged.