update other pages with russian translation

src/pages/article/create.tsx

@@ -19,7 +19,7 @@ export const ArticleCreate = () => {
       <Box component="form" sx={{display: 'flex', flexDirection: 'column'}} autoComplete="off">
         <TextField
           {...register('heading', {
-            required: 'This field is required',
+            required: 'Это поле является обязательным',
           })}
           error={!!(errors as any)?.heading}
           helperText={(errors as any)?.heading?.message}
@@ -27,12 +27,12 @@ export const ArticleCreate = () => {
           fullWidth
           InputLabelProps={{shrink: true}}
           type="text"
-          label={'Heading'}
+          label={'Заголовок'}
           name="heading"
         />
         <TextField
           {...register('body', {
-            required: 'This field is required',
+            required: 'Это поле является обязательным',
           })}
           error={!!(errors as any)?.body}
           helperText={(errors as any)?.body?.message}
@@ -40,7 +40,7 @@ export const ArticleCreate = () => {
           fullWidth
           InputLabelProps={{shrink: true}}
           type="text"
-          label={'Body'}
+          label={'Контент'}
           name="body"
         />
       </Box>