Requested Changes for Editor Knossos Implementation (#129)

* placeholder

* max length & placeholder

* Accept editor comment conflict

* integrate requested features

* null check for ref

* Change prompt for image upload

* change filter for proper input blocking

* Add spoiler button

* change url of helper link

* shallow resource link style

* resource link inherit site style

* detach preview styling from markdown-body style

* remove sizing dependance on global styles

* Bump 0.6.5

docs/components/file-input.md

@@ -21,3 +21,25 @@
   <UploadIcon />
 </FileInput>
 ```
+
+## Long Style
+
+<DemoContainer>
+<FileInput
+  :max-size="262144"
+  accept="image/png,image/jpeg,image/gif,image/webp"
+  long-style
+  class="btn"
+  prompt="Upload icon"
+/>
+</DemoContainer>
+
+```vue
+<FileInput
+  :max-size="262144"
+  accept="image/png,image/jpeg,image/gif,image/webp"
+  long-style
+  class="btn"
+  prompt="Upload icon"
+/>
+```