Bug 35294: Fix typos in catalogue code comments

Bug 35294: Fix typos in catalogue code comments

Test plan:
1. git grep -n -E 'barocode|preproccess' to find the files and line # of typos
2. Apply the patch
3. git grep -E 'barocode|proccess'
4. See no results

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit e8ef0f9417588345d6c9f7e2e5986e4e53986f52)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 96097d8058f6de34036fc4b26dec83c485ed08d9)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>