fixed animation skipping one anim when looping

Author: NoryiE

src/init.lua

@@ -16,7 +16,6 @@ local function errorHandler(err)
 end
 
 local ok, result = pcall(require, "main")
-package.loaded.main = nil
 package.loaded.log = nil
 
 package.path = defaultPath

src/plugins/animation.lua

@@ -199,6 +199,7 @@ end
 --- @return Animation self The animation instance
 function Animation:start()
     self.currentSequence = 1
+    self.timer = nil
     if(self.sequenceCallbacks[self.currentSequence])then
         if(self.sequenceCallbacks[self.currentSequence].start) then
             self.sequenceCallbacks[self.currentSequence].start(self.element)