Log Message:
mozo: update to 1.26.2

Change log:

### mozo 1.26.2

  * Translations update
  * meson build: drop desktop-file argument
  * only require gtk version 3.12 instead of 3.24

### mozo 1.26.1

  * Translations update
  * mozo-ui: fix typo in button label
  * make the collection menu item removeable
  * fix adding and removing seperator item

### mozo 1.26.0

  * Translations update
  * update copyright to 2021
  * rewrite mozo.ui from scratch

### mozo 1.25.0

  * Translations update
  * i18n: Do not collect the translation for Icon
  * Skip Collection directory
  * Remove USE_MATE2_MACROS from autogen.sh (legacy)
  * add meson build files to EXTRA_DIST