If an entry has been removed from the tree and later, during the same
session, a user is trying to add a new item with the same name/path we
should allow for that as long as the original entry is marked with
`deleted`.

Update window's URL after entry's re-name

Set proper hook for correct fileLanguage

Filtered out `moved` entries from the tree

When removing the last file from a folder in WebIDE, do not remove the
folder from the view. We keep those to give users possibility to
re-upload files to the same folders.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/60860

- On CMD+S when editor is focused
- On editor blur
- When file is created in tree
- When file is removed in tree
- When file is renamed in tree

Resolves https://gitlab.com/gitlab-org/gitlab-ce/issues/60107

- When uploading a file, we need to flag binary files correspondingly
so that it gets propagated all the way to RepoEditor as it decides on
whether to show editor for this or that file or not (shouldHideEditor())

- rawPath needs to be propagate all the way to ContentViewer as well so
that uploaded images could be rendered as a base64 image right away
instead of raw base64 string

**How?**
Previously the files_decorator inserted parent folders inefficiently.
It started at the first part and ensured each was inserted.

Since the file entries are given to use in alphabetical order, we can
start at the last part of the blob's parents. If this exists, we can
short circuit and be done inserting parents.

**What else?**
- Improve performance of decorateData. The object spread operator is
not needed because the object is brand new.

- fixed test spec
- added warning only if file is deleted

**Why?**
- This is needed for the Web Terminal feature.
  https://gitlab.com/gitlab-org/gitlab-ee/issues/5426

**Notes:**
- Introduces a `pane` Vuex module.
- Some views should not be kept alive (i.e. job details).
  This is why a `keepAlive` flag was introduced for views.

for folders, it shows all the files in commit mode
for files, nothing changes, the behaviour is the same

not working for folders yet

Closes #44845

This is to reduce the dependancy on the flash module which just modifies
the DOM, whereas this now correcly uses the vDOM

hide success message when staging files
improve action button hover

fixed spec because of object key change

auto open new folder when creating item
scroll dropdown into view when opening

added theme styles

hooked up commit section to activity bar
fixed commit section SVGs not loading
added the different theme defintions to the activity bar

[ci skip]

Closes #44838

added arrow key navigation in the dropdown
enter & click open the file
highlight occurrences of the searched text in the drppdown item
fixed some performance issues when rendering
limit the dropdown items to a maximum of 20 - this may change to more
depending on other performance changes

Pending tabs are normal tabs that are opened from the right sidebar.
They are opened in diff mode and when changed to edit mode they get
closed
& the actual file gets opened.

blur the collapse button on click