impr(quotes): added 5 sanskrit quotes (@a5TW) (monkeytypegame#6231)

### Description

added 4 sanskrit quotes from the bhagwat gita and 1 from the
brihadaranyaka upanishad

### Checks

- [x] Adding quotes?
- [x] Make sure to include translations for the quotes in the
description (or another comment) so we can verify their content.
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tag them below.
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### Translations

**BG 4.7**: Whenever there is a decline in righteousness and an increase
in unrighteousness, O Arjun, at that time I manifest Myself on earth.
**BG 6.16**: O Arjun, those who eat too much or too little, sleep too
much or too little, cannot attain success in Yog.
**BG 2.12**: Never was there a time when I did not exist, nor you, nor
all these kings; nor in the future shall any of us cease to be.
**Brihadaranyaka Upanishad 1.28**: Lead me from falsehood to truth, from
darkness to light, and from mortality to immortality.
**BG 11.54**: O Arjun, by unalloyed devotion alone can I be known as I
am, standing before you. Thereby, on receiving My divine vision, O
scorcher of foes, one can enter into union with Me.

Closes #

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Author: a5TW

frontend/static/quotes/sanskrit.json

@@ -30,6 +30,36 @@
       "source": "Mahabharat",
       "length": 403,
       "id": 4
+    },
+    {
+      "text": "यदा यदा हि धर्मस्य ग्लानिर्भवति भारत |\nअभ्युत्थानमधर्मस्य तदात्मानं सृजाम्यहम् ||",
+      "source": "Bhagwad Gita 4.7",
+      "length": 81,
+      "id": 5
+    },
+    {
+      "text": "नात्यश्नतस्तु योगोऽस्ति न चैकान्तमनश्नत: |\nन चाति स्वप्नशीलस्य जाग्रतो नैव चार्जुन ||",
+      "source": "Bhagwad Gita 6.16",
+      "length": 85,
+      "id": 6
+    },
+    {
+      "text": "न त्वेवाहं जातु नासं न त्वं नेमे जनाधिपाः |\nन चैव न भविष्याम: सर्वे वयमत: परम् ||",
+      "source": "Bhagwad Gita 2.12",
+      "length": 81,
+      "id": 7
+    },
+    {
+      "text": "ॐ असतो मा सद्गमय ।\nतमसो मा ज्योतिर्गमय ।\nमृत्योर्मा अमृतं गमय ।\nॐ शान्तिः शान्तिः शान्तिः ||",
+      "source": "Brihadaranyaka Upanishad 1.28",
+      "length": 92,
+      "id": 8
+    },
+    {
+      "text": "भक्त्या त्वनन्यया शक्य अहमेवंविधोऽर्जुन |\nज्ञातुं द्रष्टुं च तत्त्वेन प्रवेष्टुं च परन्तप ||",
+      "source": "Bhagwad Gita 11.54",
+      "length": 92,
+      "id": 9
     }
   ]
 }