ref(install): Log namespace for existing mesh

[ksubrmnn]

Signed-off-by: Kalya Subramanian [email protected]

Description:
Makes error messages more clear about existing meshes when there is an existing mesh that conflicts with the new install.

Affected area:

Functional Area
New Functionality	[ ]
Documentation	[ ]
Install	[X]
CLI Tool	[X]
Certificate Management	[ ]
Control Plane	[ ]
Ingress	[ ]
Egress	[ ]
Networking	[ ]
Observability	[ ]
SMI Policy	[ ]
Sidecar Injection	[ ]
Security	[ ]
Upgrade	[ ]
Tests	[ ]
CI System	[ ]
Demo	[ ]
Performance	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?
   • Did you notify the maintainers and provide attribution?
     No
2. Is this a breaking change?
   No

[codecov-commenter]

Codecov Report

Merging #3846 (1b549bf) into main (34d4b6d) will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #3846      +/-   ##
==========================================
+ Coverage   67.63%   67.70%   +0.07%     
==========================================
  Files         198      198              
  Lines       11034    11034              
==========================================
+ Hits         7463     7471       +8     
+ Misses       3521     3514       -7     
+ Partials       50       49       -1     

Flag	Coverage Δ
unittests	67.70% <100.00%> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/cli/install.go	84.00% <100.00%> (ø)
pkg/crdconversion/crdconversion.go	69.56% <0.00%> (+8.69%)	⬆️

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