Maybe hint to check errors for unknown

[jsoref]

If you are trying to resolve an environment-specific issue or have a one-off question about the edge case that does not require a feature then please consider asking a question in argocd slack channel.

Checklist:

• I've searched in the docs and FAQ for my answer: https://bit.ly/argocd-faq.
• I've included steps to reproduce the bug.
• I've pasted the output of argocd version.

Describe the bug

Errors running helm template (e.g. because a templated file doesn't exist) or an equivalent plugin (in the last picture it was a shell script) result in errors which result in unknown state -- the hint should suggest checking for errors. Or better, if there are errors, it might make sense to only mention them instead of syncing.

To Reproduce

1. Misconfigure a template tool such that running it fails
2. Visit argo and see an unknown state with an Error

Here's an example error (transient):

ComparisonError rpc error: code = DeadlineExceeded desc = context deadline exceeded

Expected behavior

Tooltip should suggest resolving errors (when it knows there are errors)

Screenshots

Version

{
    "Version": "v1.9.0+00f53b5",
    "BuildDate": "2021-01-27T00:04:02Z",
    "GitCommit": "00f53b510d87750492d8446e3303f6ab28258bce",
    "GitTreeState": "clean",
    "GoVersion": "go1.14.12",
    "Compiler": "gc",
    "Platform": "linux/amd64",
    "KsonnetVersion": "v0.13.1",
    "KustomizeVersion": "v3.8.1 2020-07-16T00:58:46Z",
    "HelmVersion": "v3.4.1+gc4e7485",
    "JsonnetVersion": "v0.17.0"
}

Logs

Paste any relevant application logs here.