Merge branch '38-coding-style-updates_master' of invent.kde.org:office/kmymoney into 38-coding-style-updates_master

Details can be found on
https://blog.bembel.net/2021/02/the-mysterious-change-of-a-checksum/

(cherry picked from commit 5f75b08a)

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

- add new Ledger icons
- rename home, institution after upstream changes
- fix a typo in copy_from_breeze.sh instructions
- add some missing icons that were referenced for the first time in
recent commits

This means going forward we will no longer rely on KIconThemes and the
icontheme.rcc file it generates.

https://api.kde.org/ecm/kde-module/KDECMakeSettings.html#build-settings

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

- add credit/debit indicator column
- add balance column
- simplify code
- add new column selections to UI

GUI:

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

When selecting a payee that has a default category assigned and then
switching to a payee that does not have a default category assigned
leaves the text of the category as is for the first payee. When the
default category is now enabled, the user has the impression that
the setting is made, but it is not stored.

This change clears the text so that the user has to select the
category in any case which resolves the problem.

(cherry picked from commit 3b16469b and
adjusted to work on master)

CCBUG: 431248

BUG: 431294

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"