Redo version page (#777)

* Redo version page

* More work on editing page

* Make saving work

* Finish version editing

* Version creation (base)

* Add creation buttons

* Add file uploader to versions page

* Add version file parsing

* Finish PR

* Fix version page responsiveness and use more consistent card design

* Whoops that wasn't supposed to be there

* Fixes + allow whole page dragging

* Re-add lost merge data

* Remove debug line

* Move back to list btm

Co-authored-by: Prospector <prospectordev@gmail.com>

components/ui/DropArea.vue

@@ -0,0 +1,82 @@
+<template>
+  <div
+    ref="drop_area"
+    class="drop-area"
+    @drop.stop.prevent="
+      (event) => {
+        $refs.drop_area.style.visibility = 'hidden'
+
+        if (event.dataTransfer && event.dataTransfer.files) {
+          $emit('change', event.dataTransfer.files)
+        }
+      }
+    "
+    @dragenter.prevent="allowDrag"
+    @dragover.prevent="allowDrag"
+    @dragleave.prevent="$refs.drop_area.style.visibility = 'hidden'"
+  />
+</template>
+
+<script>
+export default {
+  name: 'DropArea',
+  props: {
+    accept: {
+      type: String,
+      default: '',
+    },
+  },
+  mounted() {
+    document.addEventListener('dragenter', () => {
+      this.$refs.drop_area.style.visibility = 'visible'
+    })
+  },
+  methods: {
+    allowDrag(event) {
+      const file = event.dataTransfer?.items[0]
+
+      if (
+        file &&
+        this.accept
+          .split(',')
+          .reduce(
+            (acc, t) => acc || file.type.startsWith(t) || file.type === t,
+            false
+          )
+      ) {
+        // Adds file dropping indicator
+        event.dataTransfer.dropEffect = 'copy'
+        event.preventDefault()
+      }
+    },
+  },
+}
+</script>
+
+<style lang="scss" scoped>
+.drop-area {
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  z-index: 10;
+  visibility: hidden;
+  background-color: hsla(0, 0%, 0%, 0.5);
+  transition: visibility 0.2s ease-in-out, background-color 0.1s ease-in-out;
+  display: flex;
+
+  &::before {
+    --indent: 4rem;
+
+    content: ' ';
+    position: relative;
+    top: var(--indent);
+    left: var(--indent);
+    width: calc(100% - (2 * var(--indent)));
+    height: calc(100% - (2 * var(--indent)));
+    border-radius: 1rem;
+    border: 0.25rem dashed var(--color-button-bg);
+  }
+}
+</style>