Add 350Mhz to default range

Actually this frequency is used by some part of home devices like ceiling fans

documentation/DangerousSettings.md

@@ -1,6 +1,6 @@
 ## How to extend SubGHz supported frequency range
 
-#### CC1101 Frequency range specs: 300-348 MHz, 386-464 MHz, and 778-928 MHz 
+#### CC1101 Frequency range specs: 300-348 MHz, 386-464 MHz, and 778-928 MHz  (+ 350MHz was added to default range)
 #### This setting will extend to: 281-361 MHz, 378-481 MHz, and 749-962 MHz
 
 1. Please do not do that unless you know what exactly you are doing

documentation/SubGHzSettings.md

@@ -1,6 +1,6 @@
 ## How to add new SubGHz frequencies
 
-#### CC1101 Frequency range specs: 300-348 MHz, 386-464 MHz, and 778-928 MHz 
+#### CC1101 Frequency range specs: 300-348 MHz, 386-464 MHz, and 778-928 MHz  (+ 350MHz was added to default range)
 
 Edit user settings file located on your microSD card - `subghz/assets/setting_user`
 
@@ -11,26 +11,60 @@ if you need your custom one, make sure it doesn't listed here
 ```
     /* 300 - 348 */
     300000000,
+    302757000,
     303875000,
     304250000,
+    307000000,
+    307500000,
+    307800000,
+    309000000,
     310000000,
+    312000000,
+    312100000,
+    312200000,
+    313000000,
+    313850000,
+    314000000,
+    314350000,
+    314980000,
     315000000,
     318000000,
+    330000000,
+    345000000,
+    348000000,
+    350000000,
 
     /* 387 - 464 */
+    387000000,
     390000000,
     418000000,
     433075000, /* LPD433 first */
+    433220000,
     433420000,
-    433920000  /* LPD433 mid */
+    433657070,
+    433889000,
+    433920000 | FREQUENCY_FLAG_DEFAULT, /* LPD433 mid */
+    434075000,
+    434176948,
+    434190000,
+    434390000,
     434420000,
+    434620000,
     434775000, /* LPD433 last channels */
     438900000,
+    440175000,
+    464000000,
 
     /* 779 - 928 */
+    779000000,
     868350000,
+    868400000,
+    868800000,
+    868950000,
+    906400000,
     915000000,
     925000000,
+    928000000,
 ```
 
 ### User frequencies added AFTER that default list! You need to continue until you reach the end of that list