Translations update from Weblate

src/components/export_import/export_import.vue

-<template>
-  <div class="import-export-container">
-    <slot name="before" />
-    <button
-      class="btn button-default"
-      @click="exportData"
-    >
-      {{ exportLabel }}
-    </button>
-    <button
-      class="btn button-default"
-      @click="importData"
-    >
-      {{ importLabel }}
-    </button>
-    <slot name="afterButtons" />
-    <p
-      v-if="importFailed"
-      class="alert error"
-    >
-      {{ importFailedText }}
-    </p>
-    <slot name="afterError" />
-  </div>
-</template>
-
-<script>
-export default {
-  props: [
-    'exportObject',
-    'importLabel',
-    'exportLabel',
-    'importFailedText',
-    'validator',
-    'onImport',
-    'onImportFailure'
-  ],
-  data () {
-    return {
-      importFailed: false
-    }
-  },
-  methods: {
-    exportData () {
-      const stringified = JSON.stringify(this.exportObject, null, 2) // Pretty-print and indent with 2 spaces
-
-      // Create an invisible link with a data url and simulate a click
-      const e = document.createElement('a')
-      e.setAttribute('download', 'pleroma_theme.json')
-      e.setAttribute('href', 'data:application/json;base64,' + window.btoa(stringified))
-      e.style.display = 'none'
-
-      document.body.appendChild(e)
-      e.click()
-      document.body.removeChild(e)
-    },
-    importData () {
-      this.importFailed = false
-      const filePicker = document.createElement('input')
-      filePicker.setAttribute('type', 'file')
-      filePicker.setAttribute('accept', '.json')
-
-      filePicker.addEventListener('change', event => {
-        if (event.target.files[0]) {
-          // eslint-disable-next-line no-undef
-          const reader = new FileReader()
-          reader.onload = ({ target }) => {
-            try {
-              const parsed = JSON.parse(target.result)
-              const valid = this.validator(parsed)
-              if (valid) {
-                this.onImport(parsed)
-              } else {
-                this.importFailed = true
-                // this.onImportFailure(valid)
-              }
-            } catch (e) {
-              // This will happen both if there is a JSON syntax error or the theme is missing components
-              this.importFailed = true
-              // this.onImportFailure(e)
-            }
-          }
-          reader.readAsText(event.target.files[0])
-        }
-      })
-
-      document.body.appendChild(filePicker)
-      filePicker.click()
-      document.body.removeChild(filePicker)
-    }
-  }
-}
-</script>
-
-<style lang="scss">
-.import-export-container {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: baseline;
-  justify-content: center;
-}
-</style>