rename icons

Rename icon files to solve CMake (ECM) warnings.

```
CMake Warning (dev) at /usr/share/ECM/modules/ECMInstallIcons.cmake:248 (message):
  "hi22-apps-muon.png" has characters before the size; it should be renamed
  to "22-apps-muon.png"
Call Stack (most recent call first):
  src/icons/CMakeLists.txt:1 (ecm_install_icons)
```

(if accepted, please push it for me)

REVIEW: 126710

9 files changed, 8 insertions, 8 deletions

diff --git a/src/icons/hi128-apps-muon.png b/src/icons/128-apps-muon.png
index 6fe4681..6fe4681 100644
--- a/src/icons/hi128-apps-muon.png
+++ b/src/icons/128-apps-muon.png
diff --git a/src/icons/hi16-apps-muon.png b/src/icons/16-apps-muon.png
index 4c753b9..4c753b9 100644
--- a/src/icons/hi16-apps-muon.png
+++ b/src/icons/16-apps-muon.png
diff --git a/src/icons/hi22-apps-muon.png b/src/icons/22-apps-muon.png
index a5ecbf6..a5ecbf6 100644
--- a/src/icons/hi22-apps-muon.png
+++ b/src/icons/22-apps-muon.png
diff --git a/src/icons/hi256-apps-muon.png b/src/icons/256-apps-muon.png
index c91d70f..c91d70f 100644
--- a/src/icons/hi256-apps-muon.png
+++ b/src/icons/256-apps-muon.png
diff --git a/src/icons/hi32-apps-muon.png b/src/icons/32-apps-muon.png
index bb3e976..bb3e976 100644
--- a/src/icons/hi32-apps-muon.png
+++ b/src/icons/32-apps-muon.png
diff --git a/src/icons/hi48-apps-muon.png b/src/icons/48-apps-muon.png
index 14ce82f..14ce82f 100644
--- a/src/icons/hi48-apps-muon.png
+++ b/src/icons/48-apps-muon.png
diff --git a/src/icons/hi64-apps-muon.png b/src/icons/64-apps-muon.png
index 6527193..6527193 100644
--- a/src/icons/hi64-apps-muon.png
+++ b/src/icons/64-apps-muon.png
diff --git a/src/icons/CMakeLists.txt b/src/icons/CMakeLists.txt
index ed8b065..a5ef19f 100644
--- a/src/icons/CMakeLists.txt
+++ b/src/icons/CMakeLists.txt
@@ -1,13 +1,13 @@
 ecm_install_icons(
     ICONS
-        hi128-apps-muon.png
-        hi16-apps-muon.png
-        hi22-apps-muon.png
-        hi256-apps-muon.png
-        hi32-apps-muon.png
-        hi48-apps-muon.png
-        hi64-apps-muon.png
-        hisc-apps-muon.svgz
+        128-apps-muon.png
+        16-apps-muon.png
+        22-apps-muon.png
+        256-apps-muon.png
+        32-apps-muon.png
+        48-apps-muon.png
+        64-apps-muon.png
+        sc-apps-muon.svgz
     DESTINATION ${ICON_INSTALL_DIR}
     THEME hicolor
 )
diff --git a/src/icons/hisc-apps-muon.svgz b/src/icons/sc-apps-muon.svgz
index ba64c0e..ba64c0e 100644
--- a/src/icons/hisc-apps-muon.svgz
+++ b/src/icons/sc-apps-muon.svgz