[Umbrella] format the code in karmada-dashboard repo to meet golangci-lint

[chaosi-zju]

What would you like to be added:

format the code in karmada-dashboard repo to meet golangci-lint

Why is this needed:

• gofmt,goimports,gci @chaosi-zju format code about goimports and gci dashboard#178
• misspell,staticcheck,govet @chaosi-zju chore: format code about misspell,staticcheck,govet dashboard#181
• errcheck
• gosimple
• ineffassign
• unused
• gocyclo
• gosec
• whitespace @warjiang chore: format code about whitespace dashboard#180
• revive
  • format code about exported function should have comment dashboard#179

597 issues:
* errcheck: 6
* gci: 249
* gocyclo: 2
* gofmt: 4
* goimports: 14
* gosec: 4
* gosimple: 5
* govet: 1
* ineffassign: 5
* misspell: 2
* revive: 267
* staticcheck: 2
* unused: 8
* whitespace: 28

for revive lint (267):
  * blank-imports 2
  * empty-block 1
  * exported 150
  * indent-error-flow 2
  * receiver-naming 27
  * superfluous-else 1
  * unused-parameter 8
  * var-declaration 3
  * var-naming 14

[chaosi-zju]

@warjiang which would you like to pick

[chaosi-zju]

/help

[karmada-bot]

@chaosi-zju:
This request has been marked as needing help from a contributor.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-help command.

In response to this:

/help

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[warjiang]

@warjiang which would you like to pick

I would like to pick whitespace for a try. After whitespace lint problems are resolved, I'll try more tasks~

[warjiang]

@chaosi-zju No permission to edit the issue,
for whitespace => karmada-io/dashboard#180

[RainbowMango]

Issue author manages issue.