refactor: various improvements (#1296)

* refactor: various improvements

- enable no-use-before-define eslint rule
- shuffle code to conform to no-use-before-define eslint rule
- remove btoa dependency which is deprecated and replace with Buffer.from(string).toString('base64')
- convert some any types into useful ones
- add type annotations where possible
- remove unused @types/expect.js
- install @types/semver and ts-node which were missing
- repair and rewrite add-crowdin-contributors script
- remove export keyword from variables which are never consumed in another file
- remove unity indicator hack where linked issue was closed
- remove module declaration for kebab-case which is unused
- add missing state interface for certain components
- remove default exports for files which already have a named export
- export IRecipePreview so it can be used throughout codebase
- remove unused removeCacheForCallWith method from CachedRequest.ts
- cleanup unused colors and styles inside legacy theme

* - improve ColorPickerInput
- fix invalid DOM nesting with div inside p in EditSettingsForm
- fix progressbarAccentColor color picker not updating input when using slider
- install missing @types/react-color dependency

1 files changed, 8 insertions, 8 deletions

diff --git a/src/components/ui/headline/index.tsx b/src/components/ui/headline/index.tsx
index 424190a6a..8e40fa896 100644
--- a/src/components/ui/headline/index.tsx
+++ b/src/components/ui/headline/index.tsx
@@ -11,14 +11,6 @@ import injectStyle, { WithStylesProps } from 'react-jss';
 import { Theme } from '../../../themes';
 import { Omit } from '../typings/generic';
 
-interface IProps extends WithStylesProps<typeof styles> {
-  children: ReactNode;
-  level?: number;
-  className?: string;
-  id?: string;
-  onClick?: MouseEventHandler<HTMLButtonElement>;
-}
-
 const styles = (theme: Theme) => ({
   headline: {
     fontWeight: 'lighter',
@@ -45,6 +37,14 @@ const styles = (theme: Theme) => ({
   },
 });
 
+interface IProps extends WithStylesProps<typeof styles> {
+  children: ReactNode;
+  level?: number;
+  className?: string;
+  id?: string;
+  onClick?: MouseEventHandler<HTMLButtonElement>;
+}
+
 class HeadlineComponent extends Component<IProps> {
   render(): ReactElement {
     const { classes, level, className, children, id, onClick } = this.props;