Add "Update Branch" button to Pull Requests (#9784)

* add Divergence

* add Update Button

* first working version

* re-use code

* split raw merge commands and db-change functions (notify, cache, ...)

* use rawMerge (remove redundant code)

* own function to get Diverging of PRs

* use FlashError

* correct Error Msg

* hook is triggerd ... so remove comment

* add "branch2" to "user2/repo1" because it unit-test "TestPullView_ReviewerMissed" use it but dont exist jet :/

* move GetPerm to IsUserAllowedToUpdate

* add Flash Success MSG

* imprufe code
- remove useless js chage

* fix-lint

* TEST: add PullRequest ID:5
Repo: user2/repo1
Base: branch1
Head: pr-to-update

* correct comments

* make PR5 outdated

* fix Tests

* WIP: add pull update test

* update revs

* update locales

* working TEST

* update UI

* misspell

* change style

* add 1s delay so rev exist

* move row up (before merge row)

* fix lint nit

* UI remove divider

* Update style

* nits

* do it right

* introduce IsSameRepo

* remove useless check

Co-authored-by: Lauris BH <lauris@nix.lv>

models/pull_test.go

@@ -61,10 +61,11 @@ func TestPullRequestsNewest(t *testing.T) {
 		Labels:   []string{},
 	})
 	assert.NoError(t, err)
-	assert.Equal(t, int64(2), count)
-	if assert.Len(t, prs, 2) {
-		assert.Equal(t, int64(2), prs[0].ID)
-		assert.Equal(t, int64(1), prs[1].ID)
+	assert.EqualValues(t, 3, count)
+	if assert.Len(t, prs, 3) {
+		assert.EqualValues(t, 5, prs[0].ID)
+		assert.EqualValues(t, 2, prs[1].ID)
+		assert.EqualValues(t, 1, prs[2].ID)
 	}
 }
 
@@ -77,10 +78,11 @@ func TestPullRequestsOldest(t *testing.T) {
 		Labels:   []string{},
 	})
 	assert.NoError(t, err)
-	assert.Equal(t, int64(2), count)
-	if assert.Len(t, prs, 2) {
-		assert.Equal(t, int64(1), prs[0].ID)
-		assert.Equal(t, int64(2), prs[1].ID)
+	assert.EqualValues(t, 3, count)
+	if assert.Len(t, prs, 3) {
+		assert.EqualValues(t, 1, prs[0].ID)
+		assert.EqualValues(t, 2, prs[1].ID)
+		assert.EqualValues(t, 5, prs[2].ID)
 	}
 }