feat: Use nix-shell interpreter

files/launchers/type-1/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x

files/launchers/type-2/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -16,5 +18,5 @@ theme='style-1'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi

files/launchers/type-3/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -15,5 +17,5 @@ theme='style-10'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi

files/launchers/type-4/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -15,5 +17,5 @@ theme='style-1'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi

files/launchers/type-5/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -14,5 +16,5 @@ theme='style-1'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi

files/launchers/type-6/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -15,5 +17,5 @@ theme='style-1'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi

files/launchers/type-7/launcher.sh

@@ -1,4 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash -p rofi
+# shellcheck shell=bash
 
 ## Author : Aditya Shakya (adi1090x)
 ## Github : @adi1090x
@@ -15,5 +17,5 @@ theme='style-1'
 
 ## Run
 rofi \
-    -show drun \
-    -theme ${dir}/${theme}.rasi
+  -show drun \
+  -theme "${dir}"/${theme}.rasi