Implement action in preview for draft mode

Created by: eseliger

This is one of the remaining pieces of https://github.com/sourcegraph/sourcegraph/issues/7998. We now distinguish the published flag and display a proper action for publish as draft on the preview page.

Created by: sourcegraph-bot

Notifying subscribers in CODENOTIFY files for diff f539198477321adf4970863f6df74caadf7968d4...c93db58ca841013c31a690ac00008bcb2d0bef2a.

Notify	File(s)
@LawnGnome	client/web/src/enterprise/campaigns/apply/ChangesetSpecAction.tsx client/web/src/enterprise/campaigns/apply/VisibleChangesetSpecNode.story.tsx

Created by: sonarcloud[bot]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication

Created by: codecov[bot]

Codecov Report

Merging #15005 into main will decrease coverage by 0.00%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main   #15005      +/-   ##
==========================================
- Coverage   52.36%   52.36%   -0.01%     
==========================================
  Files        1556     1556              
  Lines       79548    79552       +4     
  Branches     7146     7104      -42     
==========================================
+ Hits        41654    41655       +1     
- Misses      34149    34151       +2     
- Partials     3745     3746       +1     

Flag	Coverage Δ
#go	52.32% <ø> (-0.01%)
#integration	30.32% <40.00%> (-0.10%)
#storybook	25.84% <100.00%> (+0.02%)
#typescript	52.44% <100.00%> (+<0.01%)
#unit	34.10% <0.00%> (-0.01%)

Impacted Files	Coverage Δ
...enterprise/campaigns/apply/ChangesetSpecAction.tsx	100.00% <100.00%> (ø)
.../internal/codeintel/resolvers/graphql/locations.go	83.50% <0.00%> (-2.07%)
client/web/src/tree/TreeRoot.tsx	79.31% <0.00%> (-1.73%)
client/web/src/repo/RepoContainer.tsx	77.77% <0.00%> (-0.93%)
...t/web/src/search/input/interactive/FilterInput.tsx	89.61% <0.00%> (+0.64%)