Text guidance for blank state

We don't have consistent text in our blank state pages in the UI. We need to create guidance and apply it.

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/339525/designs/Deleted-many-items.png#note_807219530

If you look at the following examples, the most effective ones have a call to action.

Should there be different text, based on the type of page? For example, does it make sense to have a call to action on a search or filter page that shows no results?

## Current guidance

I found this info in Pajamas:

* https://design.gitlab.com/regions/empty-states
* https://design.gitlab.com/regions/empty-states#blank-content

And there is an empty state template: https://gitlab.com/gitlab-org/gitlab/-/issues/new?issuable_template=Empty%20state

It does define different types of blank state pages:

- Blank page with a call to action
- Configuration required
- Higher tier required
- Empty search results

We should recommend text for each.

## Examples of empty state pages

The following are just random examples from the UI.

### Package Registry

https://gitlab.com/sselhorn/test-project/-/packages

![image](/uploads/337202874ce2d5812d6aff7843318635/image.png)

### Pipelines

https://gitlab.com/gitlab-org/gitlab/-/pipelines?page=1&scope=finished&username=gdoyle

![image](/uploads/edd43aa39cc74d0ca7abdd196e210760/image.png)

### Merge requests

https://gitlab.com/dashboard/merge_requests?scope=all&state=opened&assignee_username=hmjang1

![image](/uploads/097cdf96bee6e98535878a567a703708/image.png)

### Issues

https://gitlab.com/gitlab-org/gitlab/-/issues?search=adkfhasidhf&sort=created_date&state=opened

![image](/uploads/1e816f6ef006334d251d0df1985c4cd5/image.png)

### Container Registry

![image](/uploads/4f25fafd8b04bd6348c34590a6f308f9/image.png)

### Infrastructure Registry

![image](/uploads/062c78a5474500f98890fd8d56c3a33c/image.png)

### Monitor > Metrics

![image](/uploads/e79dd3ec126ef70b65fc21324f584597/image.png)

### Monitor > Tracing

![image](/uploads/4e9df16b2280e4a85ee9b152ec99104b/image.png)

### Monitor > Incidents

![image](/uploads/def330a4e72dae443f3e278a3f4947ef/image.png)

### Security & Compliance > Security Dashboard

![image](/uploads/01553af45a15279dd1b08a2e9b6656ac/image.png)

### Commit search

https://gitlab.com/gitlab-org/gitlab/-/commits/master?search=gdgdfg

![image](/uploads/4d152ecc12a1c48d88ef6de53c927a22/image.png)

### Repository > Locked files

![image](/uploads/3f778c560f89e722f1f8c92e3c5fab90/image.png)

### Issues > Milestones

https://gitlab.com/sselhorn/test-project/-/milestones

![image](/uploads/97987952010b6e0b3c9d7c9b318be6ef/image.png)

### Issues > Requirements

![image](/uploads/5fb61408cf0b326e3debf55d109b6038/image.png)

### CI/CD > Schedules

![image](/uploads/f8f618f52c82f21f812ae27a4213fe7e/image.png)

### CI/CD > Test cases

![image](/uploads/4b9d98a9419b19da67ed0e9c49f4d12a/image.png)

### Deployments > Feature flags

![image](/uploads/c13856af7966dad0053cdb71256678b4/image.png)

### Infrastructure > Serverless platform

![image](/uploads/dde3b5356eda1957978b6921e574dddc/image.png)

Story points: 2.0