Streamlined autofocus code

      if (!this.$store.state.moveLock) {

        // Lock move requests

        this.$store.commit('changeMoveLock', true);

        this.isAutofocusing = true

        axios.post(this.autofocusApiUri, {dz: dz})

        .then(response => { 

          console.log("Autofocus Task ID: " + response.data[0].id)

          this.isAutofocusing = true

          // Start the store polling TaskId for success

          self = this;

          this.$store.dispatch('pollTask', [response.data[0].id, null, null])

          .then(function() {

            UIkit.notification({message: "Finished recalibration.", status: 'success'})

          return this.$store.dispatch('pollTask', [response.data[0].id, null, null])

        })

        .then(() => { console.log("Successfully finished autofocus"); })

        .catch(error => {

          UIkit.notification({message: `<span uk-icon=\'icon: warning\'></span> ${error}`, status: 'danger'})

          this.$store.dispatch('handleHTTPError', error);  // Let store handle error

        })

        .finally(() => {

            self.isAutofocusing = false

            this.$store.commit('changeMoveLock', false)  // Release the move lock

          })

        })

        .catch(error => {

          this.$store.dispatch('handleHTTPError', error);  // Let store handle error

          self.isAutofocusing = false

          this.$store.commit('changeMoveLock', false)  // Release the move lock

          console.log("Cleaning up after autofocus.")

          this.isAutofocusing = false;

          this.$store.commit('changeMoveLock', false);  // Release the move lock

        })

      }

    }