fix: make newline compatible cross shell

When using PowerShell, "\n" isn't recognized as a newline character.
To resolve this, moving the cursor down 1 line is more interesting
as it will work in any shell using ANSI escape sequences (which we
depends upon).

Author: JanDeDobbeleer

Themes/agnosterplus.json

@@ -17,7 +17,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/avit.json

@@ -50,7 +50,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/darkblood.json

@@ -58,7 +58,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/honukai.json

@@ -64,7 +64,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/paradox.json

@@ -72,7 +72,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/pararussel.json

@@ -63,7 +63,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/powerlevel10k_lean.json

@@ -17,7 +17,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

Themes/star.json

@@ -57,7 +57,7 @@
       ]
     },
     {
-      "type": "line-break"
+      "type": "newline"
     },
     {
       "type": "prompt",

engine.go

@@ -128,13 +128,13 @@ func (e *engine) string() string {
 	for _, block := range e.settings.Blocks {
 		// if line break, append a line break
 		if block.Type == LineBreak {
-			buffer.WriteString("\n")
+			buffer.WriteString("\x1b[1B")
 			continue
 		}
 		if block.LineOffset < 0 {
 			buffer.WriteString(fmt.Sprintf("\x1b[%dF", -block.LineOffset))
 		} else if block.LineOffset > 0 {
-			buffer.WriteString(fmt.Sprintf("\x1b[%dE", block.LineOffset))
+			buffer.WriteString(fmt.Sprintf("\x1b[%dB", block.LineOffset))
 		}
 		switch block.Alignment {
 		case Right:

settings.go

@@ -26,7 +26,7 @@ const (
 	//Prompt writes one or more Segments
 	Prompt BlockType = "prompt"
 	//LineBreak creates a line break in the prompt
-	LineBreak BlockType = "line-break"
+	LineBreak BlockType = "newline"
 	//Left aligns left
 	Left BlockAlignment = "left"
 	//Right aligns right