impr(quotes): add english quotes (@rmenai) (#6144)

### Description

Added several quotes from DanMachi

### Checks

- [x] Adding quotes?
- [ ] Make sure to include translations for the quotes in the
description (or another comment) so we can verify their content.
- [ ] Adding a language or a theme?
- [ ] If is a language, did you edit `_list.json`, `_groups.json` and
add `languages.json`?
  - [ ] If is a theme, did you add the theme.css?
- Also please add a screenshot of the theme, it would be extra awesome
if you do so!
- [ ] Check if any open issues are related to this PR; if so, be sure to
tag them below.
- [ ] Make sure the PR title follows the Conventional Commits standard.
(https://www.conventionalcommits.org for more info)
- [ ] Make sure to include your GitHub username prefixed with @ inside
parentheses at the end of the PR title.

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frontend/static/quotes/english.json

@@ -38541,6 +38541,54 @@
       "source": "James T. Kirk, Star Trek",
       "length": 96,
       "id": 7624
+    },
+    {
+      "text": "If anyone has the right to be called a hero, it’s not the one who took up the blade. It’s not the one who raised his shield, nor the one who healed the wounded. The one who truly risks his life may be called a hero.",
+      "source": "DanMachi",
+      "length": 215,
+      "id": 7625
+    },
+    {
+      "text": "If it were possible, I'd like to be a hero. Like in the fairy tales I read when I was a kid. A hero that people would acknowledge.",
+      "source": "DanMachi",
+      "length": 130,
+      "id": 7626
+    },
+    {
+      "text": "I wanted to save you because you're you. I didn't want you to leave, because you're you. I can't find another reason. I don't need another reason to save you.",
+      "source": "DanMachi",
+      "length": 158,
+      "id": 7627
+    },
+    {
+      "text": "If I don't stand up here... If I don't reach higher here... When am I ever going to do it?",
+      "source": "DanMachi",
+      "length": 90,
+      "id": 7628
+    },
+    {
+      "text": "If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.",
+      "source": "DanMachi",
+      "length": 103,
+      "id": 7629
+    },
+    {
+      "text": "In the end, guilt is just the question of whether you're capable of forgiving yourself or not. If you've really changed, then prove it with your actions.",
+      "source": "DanMachi",
+      "length": 153,
+      "id": 7630
+    },
+    {
+      "text": "I don't want to be a loser who can't do anything but talk. I don't want to be somebody who can sacrifice others, but won't risk himself.",
+      "source": "DanMachi",
+      "length": 136,
+      "id": 7631
+    },
+    {
+      "text": "While you're just starting out, put all your energy into surviving. No matter how pathetic you feel, or how people laugh at you, if you win come back alive, you win.",
+      "source": "DanMachi",
+      "length": 165,
+      "id": 7632
     }
   ]
 }