fix(files): preload file tree with 2 level deep

[skjnldsv]

Fix #50929

This facilitate a bit as we now try to fetch one extra level, so when we expand one folder on the folder tree, we know a bit more about the children and can earlier decide whether to show the expand button or not

[skjnldsv]

/backport to stable32

[skjnldsv]

/backport to stable31

[szaimen]

Makes sense but did not test

[artonge]

Not sure about the logic.

Given:

_A
 |_B
   |_C

On load, I get the content of A and B, right?
Then, if I toggle B, I get the content of B and C?

So we get B twice?

Might not be that an issue, but if there is an easy way to optimise, maybe we should :).

[skjnldsv]

So we get B twice?

Might not be that an issue, but if there is an easy way to optimise, maybe we should :).

Yes, but it's at least better to ensure up-to-date data. I'm afraid ignoring the current but fetching n+1 only would lead to side effects we haven't thought of

[skjnldsv]

/compile rebase

[skjnldsv]

/compile rebase

[skjnldsv]

/compile rebase

[backportbot]

The backport to stable31 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable31
git pull origin stable31

# Create the new backport branch
git checkout -b backport/56075/stable31

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick c521b7ca b839243c

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/56075/stable31

Error: Failed to check for changes with origin/stable31: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[backportbot]

The backport to stable32 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable32
git pull origin stable32

# Create the new backport branch
git checkout -b backport/56075/stable32

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick c521b7ca b839243c

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/56075/stable32

Error: Failed to check for changes with origin/stable32: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[skjnldsv]

/backport b7f950c to stable32

[skjnldsv]

/backport b7f950c to stable31

[backportbot]

The backport to stable32 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable32
git pull origin stable32

# Create the new backport branch
git checkout -b backport/56075/stable32

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick b7f950c

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/56075/stable32

Error: Failed to check for changes with origin/stable32: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[backportbot]

The backport to stable31 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable31
git pull origin stable31

# Create the new backport branch
git checkout -b backport/56075/stable31

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick b7f950c

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/56075/stable31

Error: Failed to check for changes with origin/stable31: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.