fix: Both Add and Home being shown as selected on the homescreen

[CommanderStorm]

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Description

Noticed by @devitq in #3244
Fixes

Type of change

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• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas
  (including JSDoc for methods)
• My changes generate no new warnings
• My code needed automated testing. I have added them (this is optional task)

Screenshots (if any)

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site	previous	now
/add
/edit/:monitorid
/clone/:monitorid

[louislam]

As I remembered, it is hard to handle both desktop and mobile. Vue router somehow is complicated and hard to test, I would not recommend making changes to it.

For example:
After this pr, [404] Fail won't be highlighted in the list anymore in the monitor list while entered the edit page.

[CommanderStorm]

I have fixed the issue the change to the nesting of edit:id:

Current implementation:

• it fixes Home+Add being shown for adding+cloning
• keeps the edit-activation as is
• But: removes the desktop-outline from
  

Do you think this is a good tradeoff?

[CommanderStorm]

@louislam do you think reviewing this in 2.1/1.23.12 would be possible?
(a "no, removing the desktop outline from cloned monitors is not ok" and closing this PR would also be a fine choice..)

[CommanderStorm]

I know this is merging my own PR, but I don't think there is more to review and the tradeoff is likely better than existing..