Change green buttons to primary color (#27099)

I think it's better if the primary actions have primary color instead of
green which fits better into the overall single-color UI design. This PR
currently replaces every green button with primary:

<img width="141" alt="Screenshot 2023-09-16 at 14 07 59"
src="https://github.com/go-gitea/gitea/assets/115237/843c1e50-4fb2-4ec6-84ba-0efb9472dcbe">
<img width="161" alt="Screenshot 2023-09-16 at 14 07 51"
src="https://github.com/go-gitea/gitea/assets/115237/9442195a-a3b2-4a42-b262-8377d6f5c0d1">

Modal actions now use uncolored/primary instead of previous green/red
colors. I also removed the box-shadow on all basic buttons:

<img width="259" alt="Screenshot 2023-09-16 at 14 16 39"
src="https://github.com/go-gitea/gitea/assets/115237/5beea529-127a-44b0-8d4c-afa7b034a490">
<img width="261" alt="Screenshot 2023-09-16 at 14 17 42"
src="https://github.com/go-gitea/gitea/assets/115237/4757f7b2-4d46-49bc-a797-38bb28437b88">

The change currently includes the "Merge PR" button, for which we might
want to make an exception to match the icon color there:

<img width="442" alt="Screenshot 2023-09-16 at 14 33 53"
src="https://github.com/go-gitea/gitea/assets/115237/993ac1a5-c94d-4895-b76c-0d872181a70b">

9 files changed, 9 insertions, 9 deletions

diff --git a/templates/repo/migrate/codebase.tmpl b/templates/repo/migrate/codebase.tmpl
index db607eebb4..394e7c2ecf 100644
--- a/templates/repo/migrate/codebase.tmpl
+++ b/templates/repo/migrate/codebase.tmpl
@@ -104,7 +104,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/git.tmpl b/templates/repo/migrate/git.tmpl
index 42ae642d26..1e449ae30e 100644
--- a/templates/repo/migrate/git.tmpl
+++ b/templates/repo/migrate/git.tmpl
@@ -78,7 +78,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/gitbucket.tmpl b/templates/repo/migrate/gitbucket.tmpl
index 372df0c2db..aa269e561c 100644
--- a/templates/repo/migrate/gitbucket.tmpl
+++ b/templates/repo/migrate/gitbucket.tmpl
@@ -120,7 +120,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/gitea.tmpl b/templates/repo/migrate/gitea.tmpl
index 8022f63dc5..e4d8c62734 100644
--- a/templates/repo/migrate/gitea.tmpl
+++ b/templates/repo/migrate/gitea.tmpl
@@ -116,7 +116,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/github.tmpl b/templates/repo/migrate/github.tmpl
index 0ccad3a3ea..d3f0e0b8bd 100644
--- a/templates/repo/migrate/github.tmpl
+++ b/templates/repo/migrate/github.tmpl
@@ -118,7 +118,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/gitlab.tmpl b/templates/repo/migrate/gitlab.tmpl
index af20fa38e2..e055cce19e 100644
--- a/templates/repo/migrate/gitlab.tmpl
+++ b/templates/repo/migrate/gitlab.tmpl
@@ -115,7 +115,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/gogs.tmpl b/templates/repo/migrate/gogs.tmpl
index aeead61e41..2d66800608 100644
--- a/templates/repo/migrate/gogs.tmpl
+++ b/templates/repo/migrate/gogs.tmpl
@@ -118,7 +118,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>
diff --git a/templates/repo/migrate/migrating.tmpl b/templates/repo/migrate/migrating.tmpl
index d1bdc5a90f..6effa05f97 100644
--- a/templates/repo/migrate/migrating.tmpl
+++ b/templates/repo/migrate/migrating.tmpl
@@ -38,7 +38,7 @@
 									{{if .Failed}}
 										<button class="ui basic red show-modal button" data-modal="#delete-repo-modal">{{.locale.Tr "repo.settings.delete"}}</button>
 									{{else}}
-										<button class="ui basic red show-modal button" data-modal="#cancel-repo-modal">{{.locale.Tr "cancel"}}</button>
+										<button class="ui basic show-modal button" data-modal="#cancel-repo-modal">{{.locale.Tr "cancel"}}</button>
 									{{end}}
 									<button id="repo_migrating_retry" data-migrating-task-retry-url="{{.Link}}/settings/migrate/retry" class="ui basic button gt-hidden">{{.locale.Tr "retry"}}</button>
 								</div>
diff --git a/templates/repo/migrate/onedev.tmpl b/templates/repo/migrate/onedev.tmpl
index f5ba11ab06..818b23fddc 100644
--- a/templates/repo/migrate/onedev.tmpl
+++ b/templates/repo/migrate/onedev.tmpl
@@ -104,7 +104,7 @@
 
 					<div class="inline field">
 						<label></label>
-						<button class="ui green button">
+						<button class="ui primary button">
 							{{.locale.Tr "repo.migrate_repo"}}
 						</button>
 					</div>