Remove decorator calls and methods from views. Repalace with helper calls when needed

app/views/tree/_tree.html.haml

@@ -3,7 +3,7 @@
     %i.icon-angle-right
     = link_to project_tree_path(@project, @ref) do
       = @project.path
-  - tree.breadcrumbs(6) do |title, path|
+  - tree_breadcrumbs(tree, 6) do |title, path|
     \/
     %li
       - if path
@@ -27,7 +27,7 @@
         %tr.tree-item
           %td.tree-item-file-name
             = image_tag "file_empty.png", size: '16x16'
-            = link_to "..", project_tree_path(@project, tree.up_dir_path)
+            = link_to "..", project_tree_path(@project, up_dir_path(tree))
           %td
           %td
           %td

app/views/tree/_tree_commit_column.html.haml

@@ -1,2 +1,2 @@
-%span.tree_author= commit.author_link avatar: true
+%span.tree_author= commit_author_link(commit, avatar: true)
 = link_to_gfm truncate(commit.title, length: 80), project_commit_path(@project, commit.id), class: "tree-commit-link"