v1.5.0 to enable scan of WiFi networks

### Major Release v1.5.0

1. Enable scan of WiFi networks for selection in Configuration Portal. Check [PR for v1.3.0 - Enable scan of WiFi networks #10](khoih-prog/WiFiManager_NINA_Lite#10). Now you can select optional **SCAN_WIFI_NETWORKS**, **MANUAL_SSID_INPUT_ALLOWED** to be able to manually input SSID, not only from a scanned SSID lists and **MAX_SSID_IN_LIST** (from 2-6 for ESP8266-AT or 2-15 for other)
2. Minor enhancement to not display garbage when data is invalid

Author: khoih-prog

src/ESP_WiFiManager_Lite.h

@@ -344,7 +344,7 @@ const char ESP_WM_LITE_HTML_HEAD_END[]   /*PROGMEM*/ = "</head><div style='text-
 <fieldset><div><label>Board Name</label><input value='[[nm]]' id='nm'><div></div></div></fieldset>";	// DO NOT CHANGE THIS STRING EVER!!!!
 
 const char ESP_WM_LITE_HTML_INPUT_ID[]   /*PROGMEM*/ = "<input value='[[id]]' id='id'>";
-const char ESP_WM_LITE__HTML_INPUT_ID1[]  /*PROGMEM*/ = "<input value='[[id1]]' id='id1'>";
+const char ESP_WM_LITE_HTML_INPUT_ID1[]  /*PROGMEM*/ = "<input value='[[id1]]' id='id1'>";
 
 const char ESP_WM_LITE_FLDSET_START[]  /*PROGMEM*/ = "<fieldset>";
 const char ESP_WM_LITE_FLDSET_END[]    /*PROGMEM*/ = "</fieldset>";