fix some bugs

src/components/post_status_form/post_status_form.js

@@ -249,7 +249,7 @@ const PostStatusForm = {
       return fileTypeService.fileType(fileInfo.mimetype)
     },
     paste (e) {
-      this.resize()
+      this.resize(e)
       if (e.clipboardData.files.length > 0) {
         // prevent pasting of file as text
         e.preventDefault()

src/components/post_status_form/post_status_form.vue

@@ -96,7 +96,7 @@
             @keyup.ctrl.enter="postStatus(newStatus)"
             @drop="fileDrop"
             @dragover.prevent="fileDrag"
-            @keydown.exact="resize"
+            @input="resize"
             @compositionupdate="resize"
             @paste="paste"
           />