Version: bump to 1.0.0

Author: SeaDve

data/io.github.seadve.Kooha.appdata.xml.in

@@ -33,7 +33,7 @@
   </screenshots>
 
   <releases>
-    <release version="1.0.0" date="2021-03-06">
+    <release version="1.0.0" date="2021-03-13">
       <description>
         <p>This is the 1.0 release of Kooha. The features of this release include the following:</p>
         <ul>