Fixed auth on iOS, improved iSPEX and PlantNet Plugins

src/app/mobisplugins/minisecchi/instructions/step4/step4.page.html

@@ -1,18 +1,14 @@
-<ion-header>
-  <ion-toolbar>
-    <ion-title>4. Color of the water</ion-title>
-       <ion-buttons slot="start">
-     <ion-back-button></ion-back-button>
-   </ion-buttons>
-
+<ion-header class="ion-no-border">
+  <ion-toolbar color="black">
+    <ion-buttons slot="start">
+      <ion-back-button defaultHref="/" icon="chevron-back-outline" text=""></ion-back-button>
+    </ion-buttons>
+    <ion-title class="ion-text-center">4. Color of the water</ion-title>
   </ion-toolbar>
-  
 </ion-header>
 
 <ion-content>
-  <ion-item>
-
-
+<ion-item>
 Colour of the water surface
 Estimate the Forel-Ule colour scale by looking at the water surface, away from sun glitter.
 </ion-item>
@@ -26,7 +22,7 @@ Estimate the Forel-Ule colour scale by looking at the water surface, away from s
 
 Keeping the sun diagonally behind you over your left or right shoulder, look down and forward to the water surface (40-45 degrees) and compare the colour of the water to the Forel-Ule index. Optionally upload another photo using the same viewing angles.</ion-item>
 <img src="assets/images/forelule.png"><br>
-    <ion-button expand="block" routerLink="/instructions/step5" routerDirection="forward" >
+    <ion-button expand="block" routerLink="../step5" routerDirection="forward" >
 
 
 Step 5