fix setIcon using svg

[ArtificialOwl]

/backport to stable27

[ArtificialOwl]

/backport to stable26

[backportbot[bot]]

The backport to stable27 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable27
git pull origin stable27

# Create the new backport branch
git checkout -b backport/1544/stable27

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 9f5310f7

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/1544/stable27

Error: Failed to cherry pick commits: error: no cherry-pick or revert in progress fatal: cherry-pick failed

---

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

[backportbot[bot]]

The backport to stable26 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable26
git pull origin stable26

# Create the new backport branch
git checkout -b backport/1544/stable26

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick 9f5310f7

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/1544/stable26

Error: Failed to cherry pick commits: error: no cherry-pick or revert in progress fatal: cherry-pick failed

---

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

[blizzz]

backports failed, for whatever reason. created the 27 manually.

[mejo-]

stable29 and stable28 don't need backports?

[blizzz]

stable29 and stable28 don't need backports?

This went against stable28, newer versions are already adjusted.