feat: Change global mouse interaction

- Add .body_intro to intro screen
- Change mouse over identifier
- Introduce HippieFade as global function
- Replace #js_mob with HippieFade
- Remove old partial

source/screens/demo/examples/intro.njk

@@ -5,6 +5,7 @@ tags:
 ---
 
 {% set pageId = "init" %}
+{% set bodyClass = "body_intro" %}
 
 {% extends "hippie/_app.njk" %}
 {% import "hippie/macros/_placeholder.njk" as ph %}
@@ -51,7 +52,7 @@ tags:
 		<p>This needs to be seen and acknowledged.<br>So an interaction must be made to continue.</p>
 	</div>
 	<div id="idle" class="step op_hide">
-		<div class="mouse_over"></div>
+		<div class="mouse-overlay"></div>
 		<div class="hello">Hello World!</div>
 		<p class="hello">Only left mouse click or any key</p>
 	</div>
@@ -140,7 +141,7 @@ tags:
 			.then(showAgreement)
 			.then(showIdle)
 			.catch(er => console.error(er))
-			. finally(() => {
+			.finally(() => {
 				console.debug('Init end.', isAgree);
 				// location = 'demo/examples/ui/new.html';
 			});