Added custom source TLE update dialog

app/src/main/res/values/strings.xml

@@ -3,10 +3,8 @@
     <string name="app_name" translatable="false">Look4Sat</string>
     <string name="placeholder" translatable="false">Placeholder</string>
 
-    <string name="btn_no">No</string>
-    <string name="btn_yes">Yes</string>
-    <string name="btn_cancel">Cancel</string>
-    <string name="btn_update">Update</string>
+    <string name="no">No</string>
+    <string name="yes">Yes</string>
 
     <string name="menu_entries">Satellites</string>
     <string name="menu_passes">Passes</string>
@@ -14,9 +12,9 @@
     <string name="menu_prefs">Settings</string>
     <string name="menu_about">Info</string>
 
-    <string name="sources_title">Manage TLE sources</string>
-    <string name="sources_hint">TLE source</string>
-    <string name="sources_https">Protocol HTTPS only</string>
+    <string name="sources_title">Enter HTTPS source address</string>
+    <string name="sources_hint">Source URL</string>
+    <string name="sources_error">Please check the entered URL</string>
 
     <string name="entries_update">TLE data update:</string>
     <string name="entries_search_hint">Name / Id</string>
@@ -76,11 +74,6 @@
     <string name="pref_time_utc_title">Show pass time in UTC</string>
     <string name="pref_compass_title">Use sensors to rotate PolarView</string>
 
-    <string name="splash_tle_msg">TLE satellite data looses precision over time, so it is
-        recommended to update it every week or so</string>
-    <string name="splash_loc_msg">To get the accurate predictions please set
-        the ground station position via the Settings menu</string>
-
     <string name="tracking_title">Tracking preferences</string>
     <string name="tracking_rotator_switch">Antenna rotator control</string>
     <string name="tracking_rotator_address">Rotator IP address</string>