ci: Ensure that eslint runs on all frontend code (no-changelog) (#4602)

* ensure that eslint runs on all frontend code

* remove tslint from `design-system`

* enable prettier and eslint-prettier for `design-system`

* Delete tslint.json

* use a single editorconfig for the repo

* enable prettier for all code in `design-system`

* more linting fixes on design-system

* ignore coverage for git and prettier

* lintfix on editor-ui

packages/design-system/src/components/N8nActionToggle/ActionToggle.vue

@@ -8,11 +8,8 @@
 			@command="onCommand"
 			@visible-change="onVisibleChange"
 		>
-			<span :class="{[$style.button]: true, [$style[theme]]: !!theme}">
-				<component :is="$options.components.N8nIcon"
-					icon="ellipsis-v"
-					:size="iconSize"
-				/>
+			<span :class="{ [$style.button]: true, [$style[theme]]: !!theme }">
+				<component :is="$options.components.N8nIcon" icon="ellipsis-v" :size="iconSize" />
 			</span>
 			<el-dropdown-menu slot="dropdown" data-test-id="action-toggle-dropdown">
 				<el-dropdown-item
@@ -21,7 +18,7 @@
 					:command="action.value"
 					:disabled="action.disabled"
 				>
-					{{action.label}}
+					{{ action.label }}
 					<div :class="$style.iconContainer">
 						<component
 							v-if="action.type === 'external-link'"
@@ -66,8 +63,7 @@ export default Vue.extend({
 		size: {
 			type: String,
 			default: 'medium',
-			validator: (value: string): boolean =>
-				['mini', 'small', 'medium'].includes(value),
+			validator: (value: string): boolean => ['mini', 'small', 'medium'].includes(value),
 		},
 		iconSize: {
 			type: String,
@@ -75,8 +71,7 @@ export default Vue.extend({
 		theme: {
 			type: String,
 			default: 'default',
-			validator: (value: string): boolean =>
-				['default', 'dark'].includes(value),
+			validator: (value: string): boolean => ['default', 'dark'].includes(value),
 		},
 	},
 	methods: {