Refactored pdfViewer and fixed infrec error

modules/plugins/languages/tex/pdfViewer/premadePdfViewers.nix

@@ -0,0 +1,80 @@
+{
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib) mkDefault mkForce;
+
+  mkPdfViewerDefaults = {
+    package,
+    executable,
+    args ? [],
+  }: {
+    package = mkDefault package;
+    executable = mkDefault executable;
+    args = mkDefault args;
+  };
+in {
+  config.vim.languages.tex.pdfViewer = {
+    okular = mkPdfViewerDefaults {
+      package = pkgs.kdePackages.okular;
+      executable = "okular";
+      args = [
+        "--unique"
+        "file:%p#src:%l%f"
+      ];
+    };
+
+    sioyek = mkPdfViewerDefaults {
+      package = pkgs.sioyek;
+      executable = "sioyek";
+      args = [
+        "--reuse-window"
+        "--execute-command"
+        "toggle_synctex"
+        "--inverse-search"
+        "texlab inverse-search -i \"%%1\" -l %%2"
+        "--forward-search-file"
+        "%f"
+        "--forward-search-line"
+        "%l"
+        "%p"
+      ];
+    };
+
+    qpdfview = mkPdfViewerDefaults {
+      package = pkgs.qpdfview;
+      executable = "qpdfview";
+      args = [
+        "--unique"
+        "%p#src:%f:%l:1"
+      ];
+    };
+
+    zathura = mkPdfViewerDefaults {
+      package = pkgs.zathura;
+      executable = "zathura";
+      args = [
+        "--synctex-forward"
+        "%l:1:%f"
+        "%p"
+      ];
+    };
+
+    # This is a special pdf viewer. It is force set to a basic and known
+    # working configuration of okular and is used where needed in the
+    # rest of the tex language configuration encase no other pdf viewer
+    # was enabled.
+    # It cannot be enabled on its own and exists purely as a fallback
+    # option for internal use.
+    fallback = {
+      enable = mkForce false;
+      package = mkForce pkgs.kdePackages.okular;
+      executable = mkForce "okular";
+      args = mkForce [
+        "--unique"
+        "file:%p#src:%l%f"
+      ];
+    };
+  };
+}