Add swipe-click handler to media modal

Now swiping will correctly change the current media, and with a good
preview. Clicking without swiping closes the overlay.

src/modules/media_viewer.js

@@ -26,67 +26,13 @@ const mediaViewer = {
         return supportedTypes.has(type)
       })
       commit('setMedia', media)
-      dispatch('swipeScaler/reset')
     },
-    setCurrentMedia ({ commit, state, dispatch }, current) {
+    setCurrentMedia ({ commit, state }, current) {
       const index = state.media.indexOf(current)
       commit('setCurrentMedia', index || 0)
-      dispatch('swipeScaler/reset')
     },
     closeMediaViewer ({ commit, dispatch }) {
       commit('close')
-      dispatch('swipeScaler/reset')
-    }
-  },
-  modules: {
-    swipeScaler: {
-      namespaced: true,
-
-      state: {
-        origOffsets: [0, 0],
-        offsets: [0, 0],
-        origScaling: 1,
-        scaling: 1
-      },
-
-      mutations: {
-        reset (state) {
-          state.origOffsets = [0, 0]
-          state.offsets = [0, 0]
-          state.origScaling = 1
-          state.scaling = 1
-        },
-        applyOffsets (state, { offsets }) {
-          state.offsets = state.origOffsets.map((k, n) => k + offsets[n])
-        },
-        applyScaling (state, { scaling }) {
-          state.scaling = state.origScaling * scaling
-        },
-        finish (state) {
-          state.origOffsets = [...state.offsets]
-          state.origScaling = state.scaling
-        },
-        revert (state) {
-          state.offsets = [...state.origOffsets]
-          state.scaling = state.origScaling
-        }
-      },
-
-      actions: {
-        reset ({ commit }) {
-          commit('reset')
-        },
-        apply ({ commit }, { offsets, scaling = 1 }) {
-          commit('applyOffsets', { offsets })
-          commit('applyScaling', { scaling })
-        },
-        finish ({ commit }) {
-          commit('finish')
-        },
-        revert ({ commit }) {
-          commit('revert')
-        }
-      }
     }
   }
 }