fix: Add Swahili locale (#508)

Author: ObiWycliffe

src/locale/sw.js

@@ -0,0 +1,36 @@
+import dayjs from 'dayjs'
+
+const locale = {
+  name: 'sw',
+  weekdays: 'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijuma_Jumamosi'.split('_'),
+  months: 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Octoba_Novemba_Disemba'.split('_'),
+  weekStart: 1,
+  ordinal: n => `${n}.`,
+  formats: {
+    LT: 'H:mm',
+    LTS: 'H:mm:ss',
+    L: 'DD.MM.YYYY',
+    LL: 'D. MMMM YYYY',
+    LLL: 'D. MMMM YYYY H:mm',
+    LLLL: 'dddd D. MMMM YYYY H:mm'
+  },
+  relativeTime: {
+    future: 'Ujao %s',
+    past: 'Uliopita %s',
+    s: 'sekunde',
+    m: 'dakika',
+    mm: '%d madakika',
+    h: 'saa',
+    hh: '%d masaa',
+    d: 'siku',
+    dd: '%d masiku',
+    M: 'mwezi',
+    MM: '%d miezi',
+    y: 'mwaka',
+    yy: '%d miaka'
+  }
+}
+
+dayjs.locale(locale, null, true)
+
+export default locale