impr(quotes): add 3 English quotes (aarnav593) (#5266)

* Added 2 short and 1 medium quote from different sources

* Delete .gitpod.yml

* Changed one quote, added one more, and changed the source ofn existing  a quo (5355)te to app more ild-friendly

* Corrected length of quote

* removed quote

* readded book title to quote source

frontend/static/quotes/english.json

@@ -29921,7 +29921,7 @@
     },
     {
       "text": "You get anxious about confronting somebody in your life. That anxiety cripples you and you start wondering why you're anxious. Now you're becoming anxious about being anxious. Oh, no! Doubly anxious! Now you're anxious about your anxiety, which is causing more anxiety. Quick, where's the whiskey?",
-      "source": "Mark Manson, THE SUBTLE ART OF NOT GIVING A F***",
+      "source": "Mark Manson, The Subtle Art of Not Giving A F***",
       "length": 297,
       "id": 5355
     },
@@ -38622,6 +38622,25 @@
       "source": "Ryan Holiday",
       "length": 327,
       "id": 7038
+    },
+    {
+      "text": "It is difficult to get a man to understand something, when his salary depends upon him not understanding it.",
+      "source": "Upton Sinclair",
+      "length": 108,
+      "id": 7039
+    },
+    {
+      "text": "Don't ever underestimate the power of volunteering. Noah's ark was built by volunteers, the Titanic was built by professionals.",
+      "source": "Anonymous",
+      "length": 127,
+      "id": 7040
+    },
+    {
+      "text": "In life, things never get lost, nor do they get stolen. They just change owners.",
+      "source": "Eduardo, tour guide",
+      "length": 80,
+      "id": 7041
     }
+
   ]
 }