fix: consistent dropzone text across all file upload components

Author: premtsd-code

src/lib/components/filePicker.svelte

@@ -372,7 +372,7 @@
                                         direction="row"
                                         gap="s">
                                         <Typography.Text variant="l-500">
-                                            Drag and drop files here or click to upload
+                                            Drag and drop a file here or click to upload
                                         </Typography.Text>
                                         <Tooltip>
                                             <Layout.Stack

src/lib/components/variables/importVariablesModal.svelte

@@ -64,7 +64,7 @@
                 <Layout.Stack alignItems="center" gap="s">
                     <Layout.Stack alignItems="center" justifyContent="center" inline>
                         <Typography.Text variant="l-500" align="center" inline>
-                            Drag and drop files here or click to upload
+                            Drag and drop a file here or click to upload
                             <Layout.Stack
                                 style="display: inline-flex; vertical-align: middle;"
                                 inline

src/routes/(console)/organization-[organization]/domains/domain-[domain]/importRecordModal.svelte

@@ -89,7 +89,7 @@
                             direction="row"
                             gap="s">
                             <Typography.Text variant="l-500">
-                                Drag and drop file here or click to upload
+                                Drag and drop a file here or click to upload
                             </Typography.Text>
                             <Tooltip>
                                 <Layout.Stack alignItems="center" justifyContent="center" inline>

src/routes/(console)/project-[region]-[project]/functions/create-function/manual/+page.svelte

@@ -206,7 +206,7 @@
                         <Layout.Stack alignItems="center" gap="s">
                             <Layout.Stack alignItems="center" justifyContent="center" inline>
                                 <Typography.Text variant="l-500" align="center" inline>
-                                    Drag and drop file here or click to upload
+                                    Drag and drop a file here or click to upload
                                     <Layout.Stack
                                         style="display: inline-flex; vertical-align: middle;"
                                         inline

src/routes/(console)/project-[region]-[project]/functions/function-[function]/(modals)/createManual.svelte

@@ -93,7 +93,7 @@
                         direction="row"
                         gap="s">
                         <Typography.Text variant="l-500">
-                            Drag and drop file here or click to upload
+                            Drag and drop a file here or click to upload
                         </Typography.Text>
                         <Tooltip>
                             <Layout.Stack alignItems="center" justifyContent="center" inline>

src/routes/(console)/project-[region]-[project]/sites/create-site/manual/+page.svelte

@@ -210,7 +210,7 @@
                         <Layout.Stack alignItems="center" gap="s">
                             <Layout.Stack alignItems="center" justifyContent="center" inline>
                                 <Typography.Text variant="l-500" align="center" inline>
-                                    Drag and drop file here or click to upload
+                                    Drag and drop a file here or click to upload
                                     <Layout.Stack
                                         style="display: inline-flex; vertical-align: middle;"
                                         inline

src/routes/(console)/project-[region]-[project]/sites/site-[site]/deployments/createManualDeploymentModal.svelte

@@ -93,7 +93,7 @@
                         direction="row"
                         gap="s">
                         <Typography.Text variant="l-500">
-                            Drag and drop file here or click to upload
+                            Drag and drop a file here or click to upload
                         </Typography.Text>
                         <Tooltip>
                             <Layout.Stack alignItems="center" justifyContent="center" inline>

src/routes/(console)/project-[region]-[project]/storage/bucket-[bucket]/create/+page.svelte

@@ -122,7 +122,7 @@
                         extensions={data.bucket.allowedFileExtensions}
                         on:invalid={handleInvalid}>
                         <Typography.Text variant="l-500"
-                            >Drag and drop files here or click to upload</Typography.Text>
+                            >Drag and drop a file here or click to upload</Typography.Text>
                     </Upload.Dropzone>
 
                     {#if files}

src/routes/(console)/project-[region]-[project]/uploadVariablesModal.svelte

@@ -148,7 +148,7 @@
             <Layout.Stack alignItems="center" gap="s">
                 <Layout.Stack alignItems="center" justifyContent="center" inline>
                     <Typography.Text variant="l-500" align="center" inline>
-                        Drag and drop files here or click to upload
+                        Drag and drop a file here or click to upload
                         <Layout.Stack
                             style="display: inline-flex; vertical-align: middle;"
                             inline