feat[ErrorLog]: add a clear button in ErrorLog component (#2065)

src/store/modules/errorLog.js

@@ -5,12 +5,18 @@ const state = {
 const mutations = {
   ADD_ERROR_LOG: (state, log) => {
     state.logs.push(log)
+  },
+  CLEAR_ERROR_LOG: (state) => {
+    state.logs.splice(0)
   }
 }
 
 const actions = {
   addErrorLog({ commit }, log) {
     commit('ADD_ERROR_LOG', log)
+  },
+  clearErrorLog({ commit }) {
+    commit('CLEAR_ERROR_LOG')
   }
 }